Abstract

We present results on a free-space atom interferometer operating on the first order magnetically insensitive |F=1,mF=0〉→|F=2,mF=0〉 ground state transition of Bose-condensed 87Rb atoms. A pulsed atom laser is output-coupled from a Bose-Einstein condensate and propagates through a sequence of two internal state beam splitters, realized via coherent Raman transitions between the two interfering states. We observe Ramsey fringes with a visibility close to 100% and determine the current and the potentially achievable interferometric phase sensitivity. This system is well suited to testing recent proposals for generating and detecting squeezed atomic states.

© 2009 Optical Society of America

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    [Crossref]
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    [Crossref] [PubMed]
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    [Crossref]
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    [Crossref]

2009 (3)

A. D. Cronin, J. Schmiedmayer, and D. E. Pritchard, “Optics and interferometry with atoms and molecules,” Rev. Mod. Phys. 81, 1051 ( 2009).
[Crossref]

J. E. Debs, D. Döring, N. P. Robins, C. Figl, P. A. Altin, and J. D. Close, “A two-state Raman coupler for coherent atom optics,” Opt. Express 17, 2319 ( 2009).
[Crossref] [PubMed]

D. Döring, G. R. Dennis, N. P. Robins, M. Jeppesen, C. Figl, J. J. Hope, and J. D. Close, “Pulsed pumping of a Bose-Einstein condensate,” Phys. Rev. A 79, 063630 ( 2009).
[Crossref]

2008 (8)

N. P. Robins, C. Figl, M. Jeppesen, G. R. Dennis, and J. D. Close, “A pumped atom laser,” Nat. Phys. 4, 731 ( 2008).
[Crossref]

J. Estève, C. Gross, A. Weller, S. Giovanazzi, and M. K. Oberthaler, “Squeezing and entanglement in a BoseEinstein condensate,” Nature 455, 1216 ( 2008).
[Crossref] [PubMed]

G. Lamporesi, A. Bertoldi, L. Cacciapuoti, M. Prevedelli, and G. M. Tino, “Determination of the Newtonian Gravitational Constant Using Atom Interferometry,” Phys. Rev. Lett. 100, 050801 ( 2008).
[Crossref] [PubMed]

M. Cadoret, E. de Mirandes, P Cladé, S. Guellati-Khélifa, C Schwob, F. Nez, L. Julien, and F. Biraben, “Combination of Bloch Oscillations with a Ramsey-Bordé Interferometer: New Determination of the Fine Structure Constant,” Phys. Rev. Lett. 101, 230801 ( 2008).
[Crossref] [PubMed]

J. Friebe, A. Pape, M. Riedmann, K. Moldenhauer, T. Mehlstäubler, N. Rehbein, C. Lisdat, E. M. Rasel, W. Ertmer, H. Schnatz, B. Lipphardt, and G. Grosche, “Absolute frequency measurement of the magnesium inter-combination transition,” Phys. Rev. A 78, 033830 ( 2008).
[Crossref]

S. Dimopoulos, P. W. Graham, J. M. Hogan, and M. A. Kasevich, “General relativistic effects in atom interferometry,” Phys. Rev. D 78, 042003 ( 2008).
[Crossref]

S. Dimopoulos, P. W. Graham, J. M. Hogan, M. A. Kasevich, and S. Rajendran, “Atomic gravitational wave interferometric sensor,” Phys. Rev. D 78, 122002 ( 2008).
[Crossref]

M. Fattori, C. D’Errico, G. Roati, M. Zaccanti, M. Jona-Lasinio, M. Modugno, M. Inguscio, and G. Modugno, “Atom Interferometry with a Weakly Interacting Bose-Einstein Condensate,” Phys. Rev. Lett. 100, 080405 ( 2008).
[Crossref] [PubMed]

2007 (5)

W. Li, A. K. Tuchman, H-C Chien, and M. A. Kasevich, “Extended Coherence Time with Atom-Number Squeezed States,” Phys. Rev. Lett. 98, 040402 ( 2007).
[Crossref] [PubMed]

G.-B. Jo, Y. Shin, S. Will, T. A. Pasquini, M. Saba, W. Ketterle, D. E. Pritchard, M. Vengalattore, and M. Prentiss, “Long Phase Coherence Time and Number Squeezing of Two Bose-Einstein Condensates on an Atom Chip,” Phys. Rev. Lett. 98, 030407 ( 2007).
[Crossref] [PubMed]

M. T. Johnsson and S. A. Haine, “Generating Quadrature Squeezing in an Atom Laser through Self-Interaction,” Phys. Rev. Lett. 99, 010401 ( 2007).
[Crossref] [PubMed]

T. Müller, T. Wendrich, M. Gilowski, C. Jentsch, E. M. Rasel, and W. Ertmer, “Versatile compact atomic source for high-resolution dual atom interferometry,” Phys. Rev. A 76, 063611 ( 2007).
[Crossref]

J. B. Fixler, G. T. Foster, J. M. McGuirk, and M. A. Kasevich, “Atom Interferometer Measurement of the Newtonian Constant of Gravity,” Science 315, 74 ( 2007).
[Crossref] [PubMed]

2005 (2)

S. A. Haine and J. J. Hope, “Outcoupling from a Bose-Einstein condensate with squeezed light to produce entangled-atom laser beams,” Phys. Rev. A 72, 033601 ( 2005).
[Crossref]

R. Wynands and S. Weyers, “Atomic fountain clocks,” Metrologia 42, S64 ( 2005).

2003 (1)

2002 (1)

S. Gupta, K. Dieckmann, Z. Hadzibabic, and D. E. Pritchard, “Contrast Interferometry using Bose-Einstein Condensates to Measure h/m and a,” Phys. Rev. Lett. 89, 140401 ( 2002).
[Crossref] [PubMed]

2001 (1)

I. Bloch, M. Köhl, M. Greiner, T. W. Hänsch, and T. Esslinger, “Optics with an Atom Laser Beam,” Phys. Rev. Lett. 87, 030401 ( 2001).
[Crossref] [PubMed]

2000 (1)

Y. Torii, Y. Suzuki, M. Kozuma, T. Sugiura, T. Kuga, L. Deng, and E.W. Hagley, “Mach-Zehnder Bragg interferometer for a Bose-Einstein condensate,” Phys. Rev. A 61, 041602(R) ( 2000).
[Crossref]

1997 (2)

Y. Castin and J. Dalibard, “Relative phase of two Bose-Einstein condensates,” Phys. Rev. A 55, 4330 ( 1997).
[Crossref]

M-O. Mewes, M. R. Andrews, D. M. Kurn, D. S. Durfee, C. G. Townsend, and W. Ketterle, “Output Coupler for Bose-Einstein Condensed Atoms,” Phys. Rev. Lett. 78, 582 ( 1997).
[Crossref]

1994 (1)

D. J. Wineland, J. J. Bollinger, W. M. Itano, and D. J. Heinzen, “Squeezed atomic states and projection noise in spectroscopy,” Phys. Rev. A 50, 67 ( 1994).
[Crossref] [PubMed]

1993 (1)

M .Kitagawa and M. Ueda, “Squeezed spin states,” Phys. Rev. A 47, 5138 ( 1993).
[Crossref] [PubMed]

1981 (1)

C. M. Caves, “Quantum-mechanical noise in an interferometer,” Phys. Rev. D 23, 1693 ( 1981).
[Crossref]

1950 (1)

N. F. Ramsey, “A Molecular Beam Resonance Method with Separated Oscillating Fields,” Phys. Rev. 78, 695 ( 1950).
[Crossref]

.Kitagawa, M

M .Kitagawa and M. Ueda, “Squeezed spin states,” Phys. Rev. A 47, 5138 ( 1993).
[Crossref] [PubMed]

Altin, P. A.

Andrews, M. R.

M-O. Mewes, M. R. Andrews, D. M. Kurn, D. S. Durfee, C. G. Townsend, and W. Ketterle, “Output Coupler for Bose-Einstein Condensed Atoms,” Phys. Rev. Lett. 78, 582 ( 1997).
[Crossref]

Appel, J.

J. Appel, P. J. Windpassinger, D. Oblak, U. B. Hoff, N. Kjærgaard, and E. S. Polzik, “Mesoscopic atomic entanglement for precision measurements beyond the standard quantum limit,” arXiv:0810.3545v1

Bertoldi, A.

G. Lamporesi, A. Bertoldi, L. Cacciapuoti, M. Prevedelli, and G. M. Tino, “Determination of the Newtonian Gravitational Constant Using Atom Interferometry,” Phys. Rev. Lett. 100, 050801 ( 2008).
[Crossref] [PubMed]

Biraben, F.

M. Cadoret, E. de Mirandes, P Cladé, S. Guellati-Khélifa, C Schwob, F. Nez, L. Julien, and F. Biraben, “Combination of Bloch Oscillations with a Ramsey-Bordé Interferometer: New Determination of the Fine Structure Constant,” Phys. Rev. Lett. 101, 230801 ( 2008).
[Crossref] [PubMed]

Blinov, B. B.

Bloch, I.

I. Bloch, M. Köhl, M. Greiner, T. W. Hänsch, and T. Esslinger, “Optics with an Atom Laser Beam,” Phys. Rev. Lett. 87, 030401 ( 2001).
[Crossref] [PubMed]

Bollinger, J. J.

D. J. Wineland, J. J. Bollinger, W. M. Itano, and D. J. Heinzen, “Squeezed atomic states and projection noise in spectroscopy,” Phys. Rev. A 50, 67 ( 1994).
[Crossref] [PubMed]

Brickman, K.

Cacciapuoti, L.

G. Lamporesi, A. Bertoldi, L. Cacciapuoti, M. Prevedelli, and G. M. Tino, “Determination of the Newtonian Gravitational Constant Using Atom Interferometry,” Phys. Rev. Lett. 100, 050801 ( 2008).
[Crossref] [PubMed]

Cadoret, M.

M. Cadoret, E. de Mirandes, P Cladé, S. Guellati-Khélifa, C Schwob, F. Nez, L. Julien, and F. Biraben, “Combination of Bloch Oscillations with a Ramsey-Bordé Interferometer: New Determination of the Fine Structure Constant,” Phys. Rev. Lett. 101, 230801 ( 2008).
[Crossref] [PubMed]

Castin, Y.

Y. Castin and J. Dalibard, “Relative phase of two Bose-Einstein condensates,” Phys. Rev. A 55, 4330 ( 1997).
[Crossref]

Caves, C. M.

C. M. Caves, “Quantum-mechanical noise in an interferometer,” Phys. Rev. D 23, 1693 ( 1981).
[Crossref]

Chien, H-C

W. Li, A. K. Tuchman, H-C Chien, and M. A. Kasevich, “Extended Coherence Time with Atom-Number Squeezed States,” Phys. Rev. Lett. 98, 040402 ( 2007).
[Crossref] [PubMed]

Cladé, P

M. Cadoret, E. de Mirandes, P Cladé, S. Guellati-Khélifa, C Schwob, F. Nez, L. Julien, and F. Biraben, “Combination of Bloch Oscillations with a Ramsey-Bordé Interferometer: New Determination of the Fine Structure Constant,” Phys. Rev. Lett. 101, 230801 ( 2008).
[Crossref] [PubMed]

Close, J. D.

D. Döring, G. R. Dennis, N. P. Robins, M. Jeppesen, C. Figl, J. J. Hope, and J. D. Close, “Pulsed pumping of a Bose-Einstein condensate,” Phys. Rev. A 79, 063630 ( 2009).
[Crossref]

J. E. Debs, D. Döring, N. P. Robins, C. Figl, P. A. Altin, and J. D. Close, “A two-state Raman coupler for coherent atom optics,” Opt. Express 17, 2319 ( 2009).
[Crossref] [PubMed]

N. P. Robins, C. Figl, M. Jeppesen, G. R. Dennis, and J. D. Close, “A pumped atom laser,” Nat. Phys. 4, 731 ( 2008).
[Crossref]

D. Döring, N. P. Robins, C. Figl, and J. D. Close, “Probing a Bose-Einstein condensate with an atom laser,” Opt. Express 16, 13893 ( 2008).

Cronin, A. D.

A. D. Cronin, J. Schmiedmayer, and D. E. Pritchard, “Optics and interferometry with atoms and molecules,” Rev. Mod. Phys. 81, 1051 ( 2009).
[Crossref]

D’Errico, C.

M. Fattori, C. D’Errico, G. Roati, M. Zaccanti, M. Jona-Lasinio, M. Modugno, M. Inguscio, and G. Modugno, “Atom Interferometry with a Weakly Interacting Bose-Einstein Condensate,” Phys. Rev. Lett. 100, 080405 ( 2008).
[Crossref] [PubMed]

Dalibard, J.

Y. Castin and J. Dalibard, “Relative phase of two Bose-Einstein condensates,” Phys. Rev. A 55, 4330 ( 1997).
[Crossref]

de Mirandes, E.

M. Cadoret, E. de Mirandes, P Cladé, S. Guellati-Khélifa, C Schwob, F. Nez, L. Julien, and F. Biraben, “Combination of Bloch Oscillations with a Ramsey-Bordé Interferometer: New Determination of the Fine Structure Constant,” Phys. Rev. Lett. 101, 230801 ( 2008).
[Crossref] [PubMed]

Debs, J. E.

Deng, L.

Y. Torii, Y. Suzuki, M. Kozuma, T. Sugiura, T. Kuga, L. Deng, and E.W. Hagley, “Mach-Zehnder Bragg interferometer for a Bose-Einstein condensate,” Phys. Rev. A 61, 041602(R) ( 2000).
[Crossref]

Dennis, G. R.

D. Döring, G. R. Dennis, N. P. Robins, M. Jeppesen, C. Figl, J. J. Hope, and J. D. Close, “Pulsed pumping of a Bose-Einstein condensate,” Phys. Rev. A 79, 063630 ( 2009).
[Crossref]

N. P. Robins, C. Figl, M. Jeppesen, G. R. Dennis, and J. D. Close, “A pumped atom laser,” Nat. Phys. 4, 731 ( 2008).
[Crossref]

Deslauriers, L.

Dieckmann, K.

S. Gupta, K. Dieckmann, Z. Hadzibabic, and D. E. Pritchard, “Contrast Interferometry using Bose-Einstein Condensates to Measure h/m and a,” Phys. Rev. Lett. 89, 140401 ( 2002).
[Crossref] [PubMed]

Dimopoulos, S.

S. Dimopoulos, P. W. Graham, J. M. Hogan, and M. A. Kasevich, “General relativistic effects in atom interferometry,” Phys. Rev. D 78, 042003 ( 2008).
[Crossref]

S. Dimopoulos, P. W. Graham, J. M. Hogan, M. A. Kasevich, and S. Rajendran, “Atomic gravitational wave interferometric sensor,” Phys. Rev. D 78, 122002 ( 2008).
[Crossref]

Döring, D.

D. Döring, G. R. Dennis, N. P. Robins, M. Jeppesen, C. Figl, J. J. Hope, and J. D. Close, “Pulsed pumping of a Bose-Einstein condensate,” Phys. Rev. A 79, 063630 ( 2009).
[Crossref]

J. E. Debs, D. Döring, N. P. Robins, C. Figl, P. A. Altin, and J. D. Close, “A two-state Raman coupler for coherent atom optics,” Opt. Express 17, 2319 ( 2009).
[Crossref] [PubMed]

D. Döring, N. P. Robins, C. Figl, and J. D. Close, “Probing a Bose-Einstein condensate with an atom laser,” Opt. Express 16, 13893 ( 2008).

Durfee, D. S.

M-O. Mewes, M. R. Andrews, D. M. Kurn, D. S. Durfee, C. G. Townsend, and W. Ketterle, “Output Coupler for Bose-Einstein Condensed Atoms,” Phys. Rev. Lett. 78, 582 ( 1997).
[Crossref]

Ertmer, W.

J. Friebe, A. Pape, M. Riedmann, K. Moldenhauer, T. Mehlstäubler, N. Rehbein, C. Lisdat, E. M. Rasel, W. Ertmer, H. Schnatz, B. Lipphardt, and G. Grosche, “Absolute frequency measurement of the magnesium inter-combination transition,” Phys. Rev. A 78, 033830 ( 2008).
[Crossref]

T. Müller, T. Wendrich, M. Gilowski, C. Jentsch, E. M. Rasel, and W. Ertmer, “Versatile compact atomic source for high-resolution dual atom interferometry,” Phys. Rev. A 76, 063611 ( 2007).
[Crossref]

Esslinger, T.

I. Bloch, M. Köhl, M. Greiner, T. W. Hänsch, and T. Esslinger, “Optics with an Atom Laser Beam,” Phys. Rev. Lett. 87, 030401 ( 2001).
[Crossref] [PubMed]

Estève, J.

J. Estève, C. Gross, A. Weller, S. Giovanazzi, and M. K. Oberthaler, “Squeezing and entanglement in a BoseEinstein condensate,” Nature 455, 1216 ( 2008).
[Crossref] [PubMed]

Fattori, M.

M. Fattori, C. D’Errico, G. Roati, M. Zaccanti, M. Jona-Lasinio, M. Modugno, M. Inguscio, and G. Modugno, “Atom Interferometry with a Weakly Interacting Bose-Einstein Condensate,” Phys. Rev. Lett. 100, 080405 ( 2008).
[Crossref] [PubMed]

Figl, C.

D. Döring, G. R. Dennis, N. P. Robins, M. Jeppesen, C. Figl, J. J. Hope, and J. D. Close, “Pulsed pumping of a Bose-Einstein condensate,” Phys. Rev. A 79, 063630 ( 2009).
[Crossref]

J. E. Debs, D. Döring, N. P. Robins, C. Figl, P. A. Altin, and J. D. Close, “A two-state Raman coupler for coherent atom optics,” Opt. Express 17, 2319 ( 2009).
[Crossref] [PubMed]

N. P. Robins, C. Figl, M. Jeppesen, G. R. Dennis, and J. D. Close, “A pumped atom laser,” Nat. Phys. 4, 731 ( 2008).
[Crossref]

D. Döring, N. P. Robins, C. Figl, and J. D. Close, “Probing a Bose-Einstein condensate with an atom laser,” Opt. Express 16, 13893 ( 2008).

Fixler, J. B.

J. B. Fixler, G. T. Foster, J. M. McGuirk, and M. A. Kasevich, “Atom Interferometer Measurement of the Newtonian Constant of Gravity,” Science 315, 74 ( 2007).
[Crossref] [PubMed]

Foster, G. T.

J. B. Fixler, G. T. Foster, J. M. McGuirk, and M. A. Kasevich, “Atom Interferometer Measurement of the Newtonian Constant of Gravity,” Science 315, 74 ( 2007).
[Crossref] [PubMed]

Friebe, J.

J. Friebe, A. Pape, M. Riedmann, K. Moldenhauer, T. Mehlstäubler, N. Rehbein, C. Lisdat, E. M. Rasel, W. Ertmer, H. Schnatz, B. Lipphardt, and G. Grosche, “Absolute frequency measurement of the magnesium inter-combination transition,” Phys. Rev. A 78, 033830 ( 2008).
[Crossref]

Gilowski, M.

T. Müller, T. Wendrich, M. Gilowski, C. Jentsch, E. M. Rasel, and W. Ertmer, “Versatile compact atomic source for high-resolution dual atom interferometry,” Phys. Rev. A 76, 063611 ( 2007).
[Crossref]

Giovanazzi, S.

J. Estève, C. Gross, A. Weller, S. Giovanazzi, and M. K. Oberthaler, “Squeezing and entanglement in a BoseEinstein condensate,” Nature 455, 1216 ( 2008).
[Crossref] [PubMed]

Graham, P. W.

S. Dimopoulos, P. W. Graham, J. M. Hogan, M. A. Kasevich, and S. Rajendran, “Atomic gravitational wave interferometric sensor,” Phys. Rev. D 78, 122002 ( 2008).
[Crossref]

S. Dimopoulos, P. W. Graham, J. M. Hogan, and M. A. Kasevich, “General relativistic effects in atom interferometry,” Phys. Rev. D 78, 042003 ( 2008).
[Crossref]

Greiner, M.

I. Bloch, M. Köhl, M. Greiner, T. W. Hänsch, and T. Esslinger, “Optics with an Atom Laser Beam,” Phys. Rev. Lett. 87, 030401 ( 2001).
[Crossref] [PubMed]

Grosche, G.

J. Friebe, A. Pape, M. Riedmann, K. Moldenhauer, T. Mehlstäubler, N. Rehbein, C. Lisdat, E. M. Rasel, W. Ertmer, H. Schnatz, B. Lipphardt, and G. Grosche, “Absolute frequency measurement of the magnesium inter-combination transition,” Phys. Rev. A 78, 033830 ( 2008).
[Crossref]

Gross, C.

J. Estève, C. Gross, A. Weller, S. Giovanazzi, and M. K. Oberthaler, “Squeezing and entanglement in a BoseEinstein condensate,” Nature 455, 1216 ( 2008).
[Crossref] [PubMed]

Guellati-Khélifa, S.

M. Cadoret, E. de Mirandes, P Cladé, S. Guellati-Khélifa, C Schwob, F. Nez, L. Julien, and F. Biraben, “Combination of Bloch Oscillations with a Ramsey-Bordé Interferometer: New Determination of the Fine Structure Constant,” Phys. Rev. Lett. 101, 230801 ( 2008).
[Crossref] [PubMed]

Gupta, S.

S. Gupta, K. Dieckmann, Z. Hadzibabic, and D. E. Pritchard, “Contrast Interferometry using Bose-Einstein Condensates to Measure h/m and a,” Phys. Rev. Lett. 89, 140401 ( 2002).
[Crossref] [PubMed]

Hadzibabic, Z.

S. Gupta, K. Dieckmann, Z. Hadzibabic, and D. E. Pritchard, “Contrast Interferometry using Bose-Einstein Condensates to Measure h/m and a,” Phys. Rev. Lett. 89, 140401 ( 2002).
[Crossref] [PubMed]

Hagley, E.W.

Y. Torii, Y. Suzuki, M. Kozuma, T. Sugiura, T. Kuga, L. Deng, and E.W. Hagley, “Mach-Zehnder Bragg interferometer for a Bose-Einstein condensate,” Phys. Rev. A 61, 041602(R) ( 2000).
[Crossref]

Haine, S. A.

M. T. Johnsson and S. A. Haine, “Generating Quadrature Squeezing in an Atom Laser through Self-Interaction,” Phys. Rev. Lett. 99, 010401 ( 2007).
[Crossref] [PubMed]

S. A. Haine and J. J. Hope, “Outcoupling from a Bose-Einstein condensate with squeezed light to produce entangled-atom laser beams,” Phys. Rev. A 72, 033601 ( 2005).
[Crossref]

Hänsch, T. W.

I. Bloch, M. Köhl, M. Greiner, T. W. Hänsch, and T. Esslinger, “Optics with an Atom Laser Beam,” Phys. Rev. Lett. 87, 030401 ( 2001).
[Crossref] [PubMed]

Heinzen, D. J.

D. J. Wineland, J. J. Bollinger, W. M. Itano, and D. J. Heinzen, “Squeezed atomic states and projection noise in spectroscopy,” Phys. Rev. A 50, 67 ( 1994).
[Crossref] [PubMed]

Hoff, U. B.

J. Appel, P. J. Windpassinger, D. Oblak, U. B. Hoff, N. Kjærgaard, and E. S. Polzik, “Mesoscopic atomic entanglement for precision measurements beyond the standard quantum limit,” arXiv:0810.3545v1

Hogan, J. M.

S. Dimopoulos, P. W. Graham, J. M. Hogan, and M. A. Kasevich, “General relativistic effects in atom interferometry,” Phys. Rev. D 78, 042003 ( 2008).
[Crossref]

S. Dimopoulos, P. W. Graham, J. M. Hogan, M. A. Kasevich, and S. Rajendran, “Atomic gravitational wave interferometric sensor,” Phys. Rev. D 78, 122002 ( 2008).
[Crossref]

Hope, J. J.

D. Döring, G. R. Dennis, N. P. Robins, M. Jeppesen, C. Figl, J. J. Hope, and J. D. Close, “Pulsed pumping of a Bose-Einstein condensate,” Phys. Rev. A 79, 063630 ( 2009).
[Crossref]

S. A. Haine and J. J. Hope, “Outcoupling from a Bose-Einstein condensate with squeezed light to produce entangled-atom laser beams,” Phys. Rev. A 72, 033601 ( 2005).
[Crossref]

Inguscio, M.

M. Fattori, C. D’Errico, G. Roati, M. Zaccanti, M. Jona-Lasinio, M. Modugno, M. Inguscio, and G. Modugno, “Atom Interferometry with a Weakly Interacting Bose-Einstein Condensate,” Phys. Rev. Lett. 100, 080405 ( 2008).
[Crossref] [PubMed]

Itano, W. M.

D. J. Wineland, J. J. Bollinger, W. M. Itano, and D. J. Heinzen, “Squeezed atomic states and projection noise in spectroscopy,” Phys. Rev. A 50, 67 ( 1994).
[Crossref] [PubMed]

Jentsch, C.

T. Müller, T. Wendrich, M. Gilowski, C. Jentsch, E. M. Rasel, and W. Ertmer, “Versatile compact atomic source for high-resolution dual atom interferometry,” Phys. Rev. A 76, 063611 ( 2007).
[Crossref]

Jeppesen, M.

D. Döring, G. R. Dennis, N. P. Robins, M. Jeppesen, C. Figl, J. J. Hope, and J. D. Close, “Pulsed pumping of a Bose-Einstein condensate,” Phys. Rev. A 79, 063630 ( 2009).
[Crossref]

N. P. Robins, C. Figl, M. Jeppesen, G. R. Dennis, and J. D. Close, “A pumped atom laser,” Nat. Phys. 4, 731 ( 2008).
[Crossref]

Jo, G.-B.

G.-B. Jo, Y. Shin, S. Will, T. A. Pasquini, M. Saba, W. Ketterle, D. E. Pritchard, M. Vengalattore, and M. Prentiss, “Long Phase Coherence Time and Number Squeezing of Two Bose-Einstein Condensates on an Atom Chip,” Phys. Rev. Lett. 98, 030407 ( 2007).
[Crossref] [PubMed]

Johnsson, M. T.

M. T. Johnsson and S. A. Haine, “Generating Quadrature Squeezing in an Atom Laser through Self-Interaction,” Phys. Rev. Lett. 99, 010401 ( 2007).
[Crossref] [PubMed]

Jona-Lasinio, M.

M. Fattori, C. D’Errico, G. Roati, M. Zaccanti, M. Jona-Lasinio, M. Modugno, M. Inguscio, and G. Modugno, “Atom Interferometry with a Weakly Interacting Bose-Einstein Condensate,” Phys. Rev. Lett. 100, 080405 ( 2008).
[Crossref] [PubMed]

Julien, L.

M. Cadoret, E. de Mirandes, P Cladé, S. Guellati-Khélifa, C Schwob, F. Nez, L. Julien, and F. Biraben, “Combination of Bloch Oscillations with a Ramsey-Bordé Interferometer: New Determination of the Fine Structure Constant,” Phys. Rev. Lett. 101, 230801 ( 2008).
[Crossref] [PubMed]

Kasevich, M. A.

S. Dimopoulos, P. W. Graham, J. M. Hogan, M. A. Kasevich, and S. Rajendran, “Atomic gravitational wave interferometric sensor,” Phys. Rev. D 78, 122002 ( 2008).
[Crossref]

S. Dimopoulos, P. W. Graham, J. M. Hogan, and M. A. Kasevich, “General relativistic effects in atom interferometry,” Phys. Rev. D 78, 042003 ( 2008).
[Crossref]

J. B. Fixler, G. T. Foster, J. M. McGuirk, and M. A. Kasevich, “Atom Interferometer Measurement of the Newtonian Constant of Gravity,” Science 315, 74 ( 2007).
[Crossref] [PubMed]

W. Li, A. K. Tuchman, H-C Chien, and M. A. Kasevich, “Extended Coherence Time with Atom-Number Squeezed States,” Phys. Rev. Lett. 98, 040402 ( 2007).
[Crossref] [PubMed]

Ketterle, W.

G.-B. Jo, Y. Shin, S. Will, T. A. Pasquini, M. Saba, W. Ketterle, D. E. Pritchard, M. Vengalattore, and M. Prentiss, “Long Phase Coherence Time and Number Squeezing of Two Bose-Einstein Condensates on an Atom Chip,” Phys. Rev. Lett. 98, 030407 ( 2007).
[Crossref] [PubMed]

M-O. Mewes, M. R. Andrews, D. M. Kurn, D. S. Durfee, C. G. Townsend, and W. Ketterle, “Output Coupler for Bose-Einstein Condensed Atoms,” Phys. Rev. Lett. 78, 582 ( 1997).
[Crossref]

Kjærgaard, N.

J. Appel, P. J. Windpassinger, D. Oblak, U. B. Hoff, N. Kjærgaard, and E. S. Polzik, “Mesoscopic atomic entanglement for precision measurements beyond the standard quantum limit,” arXiv:0810.3545v1

Köhl, M.

I. Bloch, M. Köhl, M. Greiner, T. W. Hänsch, and T. Esslinger, “Optics with an Atom Laser Beam,” Phys. Rev. Lett. 87, 030401 ( 2001).
[Crossref] [PubMed]

Kozuma, M.

Y. Torii, Y. Suzuki, M. Kozuma, T. Sugiura, T. Kuga, L. Deng, and E.W. Hagley, “Mach-Zehnder Bragg interferometer for a Bose-Einstein condensate,” Phys. Rev. A 61, 041602(R) ( 2000).
[Crossref]

Kuga, T.

Y. Torii, Y. Suzuki, M. Kozuma, T. Sugiura, T. Kuga, L. Deng, and E.W. Hagley, “Mach-Zehnder Bragg interferometer for a Bose-Einstein condensate,” Phys. Rev. A 61, 041602(R) ( 2000).
[Crossref]

Kurn, D. M.

M-O. Mewes, M. R. Andrews, D. M. Kurn, D. S. Durfee, C. G. Townsend, and W. Ketterle, “Output Coupler for Bose-Einstein Condensed Atoms,” Phys. Rev. Lett. 78, 582 ( 1997).
[Crossref]

Lamporesi, G.

G. Lamporesi, A. Bertoldi, L. Cacciapuoti, M. Prevedelli, and G. M. Tino, “Determination of the Newtonian Gravitational Constant Using Atom Interferometry,” Phys. Rev. Lett. 100, 050801 ( 2008).
[Crossref] [PubMed]

Lee, P. J.

Leroux, I. D.

M. H. Schleier-Smith, I. D. Leroux, and V. Vuletić, “Reduced-Quantum-Uncertainty States of an Ensemble of Two-Level Atoms,” arXiv:0810.2582v1

Li, W.

W. Li, A. K. Tuchman, H-C Chien, and M. A. Kasevich, “Extended Coherence Time with Atom-Number Squeezed States,” Phys. Rev. Lett. 98, 040402 ( 2007).
[Crossref] [PubMed]

Lipphardt, B.

J. Friebe, A. Pape, M. Riedmann, K. Moldenhauer, T. Mehlstäubler, N. Rehbein, C. Lisdat, E. M. Rasel, W. Ertmer, H. Schnatz, B. Lipphardt, and G. Grosche, “Absolute frequency measurement of the magnesium inter-combination transition,” Phys. Rev. A 78, 033830 ( 2008).
[Crossref]

Lisdat, C.

J. Friebe, A. Pape, M. Riedmann, K. Moldenhauer, T. Mehlstäubler, N. Rehbein, C. Lisdat, E. M. Rasel, W. Ertmer, H. Schnatz, B. Lipphardt, and G. Grosche, “Absolute frequency measurement of the magnesium inter-combination transition,” Phys. Rev. A 78, 033830 ( 2008).
[Crossref]

Madsen, M. J.

McGuirk, J. M.

J. B. Fixler, G. T. Foster, J. M. McGuirk, and M. A. Kasevich, “Atom Interferometer Measurement of the Newtonian Constant of Gravity,” Science 315, 74 ( 2007).
[Crossref] [PubMed]

Mehlstäubler, T.

J. Friebe, A. Pape, M. Riedmann, K. Moldenhauer, T. Mehlstäubler, N. Rehbein, C. Lisdat, E. M. Rasel, W. Ertmer, H. Schnatz, B. Lipphardt, and G. Grosche, “Absolute frequency measurement of the magnesium inter-combination transition,” Phys. Rev. A 78, 033830 ( 2008).
[Crossref]

Mewes, M-O.

M-O. Mewes, M. R. Andrews, D. M. Kurn, D. S. Durfee, C. G. Townsend, and W. Ketterle, “Output Coupler for Bose-Einstein Condensed Atoms,” Phys. Rev. Lett. 78, 582 ( 1997).
[Crossref]

Miller, R.

Modugno, G.

M. Fattori, C. D’Errico, G. Roati, M. Zaccanti, M. Jona-Lasinio, M. Modugno, M. Inguscio, and G. Modugno, “Atom Interferometry with a Weakly Interacting Bose-Einstein Condensate,” Phys. Rev. Lett. 100, 080405 ( 2008).
[Crossref] [PubMed]

Modugno, M.

M. Fattori, C. D’Errico, G. Roati, M. Zaccanti, M. Jona-Lasinio, M. Modugno, M. Inguscio, and G. Modugno, “Atom Interferometry with a Weakly Interacting Bose-Einstein Condensate,” Phys. Rev. Lett. 100, 080405 ( 2008).
[Crossref] [PubMed]

Moehring, D. L.

Moldenhauer, K.

J. Friebe, A. Pape, M. Riedmann, K. Moldenhauer, T. Mehlstäubler, N. Rehbein, C. Lisdat, E. M. Rasel, W. Ertmer, H. Schnatz, B. Lipphardt, and G. Grosche, “Absolute frequency measurement of the magnesium inter-combination transition,” Phys. Rev. A 78, 033830 ( 2008).
[Crossref]

Monroe, C.

Müller, T.

T. Müller, T. Wendrich, M. Gilowski, C. Jentsch, E. M. Rasel, and W. Ertmer, “Versatile compact atomic source for high-resolution dual atom interferometry,” Phys. Rev. A 76, 063611 ( 2007).
[Crossref]

Nez, F.

M. Cadoret, E. de Mirandes, P Cladé, S. Guellati-Khélifa, C Schwob, F. Nez, L. Julien, and F. Biraben, “Combination of Bloch Oscillations with a Ramsey-Bordé Interferometer: New Determination of the Fine Structure Constant,” Phys. Rev. Lett. 101, 230801 ( 2008).
[Crossref] [PubMed]

Oberthaler, M. K.

J. Estève, C. Gross, A. Weller, S. Giovanazzi, and M. K. Oberthaler, “Squeezing and entanglement in a BoseEinstein condensate,” Nature 455, 1216 ( 2008).
[Crossref] [PubMed]

Oblak, D.

J. Appel, P. J. Windpassinger, D. Oblak, U. B. Hoff, N. Kjærgaard, and E. S. Polzik, “Mesoscopic atomic entanglement for precision measurements beyond the standard quantum limit,” arXiv:0810.3545v1

Pape, A.

J. Friebe, A. Pape, M. Riedmann, K. Moldenhauer, T. Mehlstäubler, N. Rehbein, C. Lisdat, E. M. Rasel, W. Ertmer, H. Schnatz, B. Lipphardt, and G. Grosche, “Absolute frequency measurement of the magnesium inter-combination transition,” Phys. Rev. A 78, 033830 ( 2008).
[Crossref]

Pasquini, T. A.

G.-B. Jo, Y. Shin, S. Will, T. A. Pasquini, M. Saba, W. Ketterle, D. E. Pritchard, M. Vengalattore, and M. Prentiss, “Long Phase Coherence Time and Number Squeezing of Two Bose-Einstein Condensates on an Atom Chip,” Phys. Rev. Lett. 98, 030407 ( 2007).
[Crossref] [PubMed]

Polzik, E. S.

J. Appel, P. J. Windpassinger, D. Oblak, U. B. Hoff, N. Kjærgaard, and E. S. Polzik, “Mesoscopic atomic entanglement for precision measurements beyond the standard quantum limit,” arXiv:0810.3545v1

Prentiss, M.

G.-B. Jo, Y. Shin, S. Will, T. A. Pasquini, M. Saba, W. Ketterle, D. E. Pritchard, M. Vengalattore, and M. Prentiss, “Long Phase Coherence Time and Number Squeezing of Two Bose-Einstein Condensates on an Atom Chip,” Phys. Rev. Lett. 98, 030407 ( 2007).
[Crossref] [PubMed]

Prevedelli, M.

G. Lamporesi, A. Bertoldi, L. Cacciapuoti, M. Prevedelli, and G. M. Tino, “Determination of the Newtonian Gravitational Constant Using Atom Interferometry,” Phys. Rev. Lett. 100, 050801 ( 2008).
[Crossref] [PubMed]

Pritchard, D. E.

A. D. Cronin, J. Schmiedmayer, and D. E. Pritchard, “Optics and interferometry with atoms and molecules,” Rev. Mod. Phys. 81, 1051 ( 2009).
[Crossref]

G.-B. Jo, Y. Shin, S. Will, T. A. Pasquini, M. Saba, W. Ketterle, D. E. Pritchard, M. Vengalattore, and M. Prentiss, “Long Phase Coherence Time and Number Squeezing of Two Bose-Einstein Condensates on an Atom Chip,” Phys. Rev. Lett. 98, 030407 ( 2007).
[Crossref] [PubMed]

S. Gupta, K. Dieckmann, Z. Hadzibabic, and D. E. Pritchard, “Contrast Interferometry using Bose-Einstein Condensates to Measure h/m and a,” Phys. Rev. Lett. 89, 140401 ( 2002).
[Crossref] [PubMed]

Rajendran, S.

S. Dimopoulos, P. W. Graham, J. M. Hogan, M. A. Kasevich, and S. Rajendran, “Atomic gravitational wave interferometric sensor,” Phys. Rev. D 78, 122002 ( 2008).
[Crossref]

Ramsey, N. F.

N. F. Ramsey, “A Molecular Beam Resonance Method with Separated Oscillating Fields,” Phys. Rev. 78, 695 ( 1950).
[Crossref]

Rasel, E. M.

J. Friebe, A. Pape, M. Riedmann, K. Moldenhauer, T. Mehlstäubler, N. Rehbein, C. Lisdat, E. M. Rasel, W. Ertmer, H. Schnatz, B. Lipphardt, and G. Grosche, “Absolute frequency measurement of the magnesium inter-combination transition,” Phys. Rev. A 78, 033830 ( 2008).
[Crossref]

T. Müller, T. Wendrich, M. Gilowski, C. Jentsch, E. M. Rasel, and W. Ertmer, “Versatile compact atomic source for high-resolution dual atom interferometry,” Phys. Rev. A 76, 063611 ( 2007).
[Crossref]

Rehbein, N.

J. Friebe, A. Pape, M. Riedmann, K. Moldenhauer, T. Mehlstäubler, N. Rehbein, C. Lisdat, E. M. Rasel, W. Ertmer, H. Schnatz, B. Lipphardt, and G. Grosche, “Absolute frequency measurement of the magnesium inter-combination transition,” Phys. Rev. A 78, 033830 ( 2008).
[Crossref]

Riedmann, M.

J. Friebe, A. Pape, M. Riedmann, K. Moldenhauer, T. Mehlstäubler, N. Rehbein, C. Lisdat, E. M. Rasel, W. Ertmer, H. Schnatz, B. Lipphardt, and G. Grosche, “Absolute frequency measurement of the magnesium inter-combination transition,” Phys. Rev. A 78, 033830 ( 2008).
[Crossref]

Roati, G.

M. Fattori, C. D’Errico, G. Roati, M. Zaccanti, M. Jona-Lasinio, M. Modugno, M. Inguscio, and G. Modugno, “Atom Interferometry with a Weakly Interacting Bose-Einstein Condensate,” Phys. Rev. Lett. 100, 080405 ( 2008).
[Crossref] [PubMed]

Robins, N. P.

D. Döring, G. R. Dennis, N. P. Robins, M. Jeppesen, C. Figl, J. J. Hope, and J. D. Close, “Pulsed pumping of a Bose-Einstein condensate,” Phys. Rev. A 79, 063630 ( 2009).
[Crossref]

J. E. Debs, D. Döring, N. P. Robins, C. Figl, P. A. Altin, and J. D. Close, “A two-state Raman coupler for coherent atom optics,” Opt. Express 17, 2319 ( 2009).
[Crossref] [PubMed]

N. P. Robins, C. Figl, M. Jeppesen, G. R. Dennis, and J. D. Close, “A pumped atom laser,” Nat. Phys. 4, 731 ( 2008).
[Crossref]

D. Döring, N. P. Robins, C. Figl, and J. D. Close, “Probing a Bose-Einstein condensate with an atom laser,” Opt. Express 16, 13893 ( 2008).

Saba, M.

G.-B. Jo, Y. Shin, S. Will, T. A. Pasquini, M. Saba, W. Ketterle, D. E. Pritchard, M. Vengalattore, and M. Prentiss, “Long Phase Coherence Time and Number Squeezing of Two Bose-Einstein Condensates on an Atom Chip,” Phys. Rev. Lett. 98, 030407 ( 2007).
[Crossref] [PubMed]

Schleier-Smith, M. H.

M. H. Schleier-Smith, I. D. Leroux, and V. Vuletić, “Reduced-Quantum-Uncertainty States of an Ensemble of Two-Level Atoms,” arXiv:0810.2582v1

Schmiedmayer, J.

A. D. Cronin, J. Schmiedmayer, and D. E. Pritchard, “Optics and interferometry with atoms and molecules,” Rev. Mod. Phys. 81, 1051 ( 2009).
[Crossref]

Schnatz, H.

J. Friebe, A. Pape, M. Riedmann, K. Moldenhauer, T. Mehlstäubler, N. Rehbein, C. Lisdat, E. M. Rasel, W. Ertmer, H. Schnatz, B. Lipphardt, and G. Grosche, “Absolute frequency measurement of the magnesium inter-combination transition,” Phys. Rev. A 78, 033830 ( 2008).
[Crossref]

Schwob, C

M. Cadoret, E. de Mirandes, P Cladé, S. Guellati-Khélifa, C Schwob, F. Nez, L. Julien, and F. Biraben, “Combination of Bloch Oscillations with a Ramsey-Bordé Interferometer: New Determination of the Fine Structure Constant,” Phys. Rev. Lett. 101, 230801 ( 2008).
[Crossref] [PubMed]

Shin, Y.

G.-B. Jo, Y. Shin, S. Will, T. A. Pasquini, M. Saba, W. Ketterle, D. E. Pritchard, M. Vengalattore, and M. Prentiss, “Long Phase Coherence Time and Number Squeezing of Two Bose-Einstein Condensates on an Atom Chip,” Phys. Rev. Lett. 98, 030407 ( 2007).
[Crossref] [PubMed]

Stick, D.

Sugiura, T.

Y. Torii, Y. Suzuki, M. Kozuma, T. Sugiura, T. Kuga, L. Deng, and E.W. Hagley, “Mach-Zehnder Bragg interferometer for a Bose-Einstein condensate,” Phys. Rev. A 61, 041602(R) ( 2000).
[Crossref]

Suzuki, Y.

Y. Torii, Y. Suzuki, M. Kozuma, T. Sugiura, T. Kuga, L. Deng, and E.W. Hagley, “Mach-Zehnder Bragg interferometer for a Bose-Einstein condensate,” Phys. Rev. A 61, 041602(R) ( 2000).
[Crossref]

Tino, G. M.

G. Lamporesi, A. Bertoldi, L. Cacciapuoti, M. Prevedelli, and G. M. Tino, “Determination of the Newtonian Gravitational Constant Using Atom Interferometry,” Phys. Rev. Lett. 100, 050801 ( 2008).
[Crossref] [PubMed]

Torii, Y.

Y. Torii, Y. Suzuki, M. Kozuma, T. Sugiura, T. Kuga, L. Deng, and E.W. Hagley, “Mach-Zehnder Bragg interferometer for a Bose-Einstein condensate,” Phys. Rev. A 61, 041602(R) ( 2000).
[Crossref]

Townsend, C. G.

M-O. Mewes, M. R. Andrews, D. M. Kurn, D. S. Durfee, C. G. Townsend, and W. Ketterle, “Output Coupler for Bose-Einstein Condensed Atoms,” Phys. Rev. Lett. 78, 582 ( 1997).
[Crossref]

Tuchman, A. K.

W. Li, A. K. Tuchman, H-C Chien, and M. A. Kasevich, “Extended Coherence Time with Atom-Number Squeezed States,” Phys. Rev. Lett. 98, 040402 ( 2007).
[Crossref] [PubMed]

Ueda, M.

M .Kitagawa and M. Ueda, “Squeezed spin states,” Phys. Rev. A 47, 5138 ( 1993).
[Crossref] [PubMed]

Vengalattore, M.

G.-B. Jo, Y. Shin, S. Will, T. A. Pasquini, M. Saba, W. Ketterle, D. E. Pritchard, M. Vengalattore, and M. Prentiss, “Long Phase Coherence Time and Number Squeezing of Two Bose-Einstein Condensates on an Atom Chip,” Phys. Rev. Lett. 98, 030407 ( 2007).
[Crossref] [PubMed]

Vuletic, V.

M. H. Schleier-Smith, I. D. Leroux, and V. Vuletić, “Reduced-Quantum-Uncertainty States of an Ensemble of Two-Level Atoms,” arXiv:0810.2582v1

Weller, A.

J. Estève, C. Gross, A. Weller, S. Giovanazzi, and M. K. Oberthaler, “Squeezing and entanglement in a BoseEinstein condensate,” Nature 455, 1216 ( 2008).
[Crossref] [PubMed]

Wendrich, T.

T. Müller, T. Wendrich, M. Gilowski, C. Jentsch, E. M. Rasel, and W. Ertmer, “Versatile compact atomic source for high-resolution dual atom interferometry,” Phys. Rev. A 76, 063611 ( 2007).
[Crossref]

Weyers, S.

R. Wynands and S. Weyers, “Atomic fountain clocks,” Metrologia 42, S64 ( 2005).

Will, S.

G.-B. Jo, Y. Shin, S. Will, T. A. Pasquini, M. Saba, W. Ketterle, D. E. Pritchard, M. Vengalattore, and M. Prentiss, “Long Phase Coherence Time and Number Squeezing of Two Bose-Einstein Condensates on an Atom Chip,” Phys. Rev. Lett. 98, 030407 ( 2007).
[Crossref] [PubMed]

Windpassinger, P. J.

J. Appel, P. J. Windpassinger, D. Oblak, U. B. Hoff, N. Kjærgaard, and E. S. Polzik, “Mesoscopic atomic entanglement for precision measurements beyond the standard quantum limit,” arXiv:0810.3545v1

Wineland, D. J.

D. J. Wineland, J. J. Bollinger, W. M. Itano, and D. J. Heinzen, “Squeezed atomic states and projection noise in spectroscopy,” Phys. Rev. A 50, 67 ( 1994).
[Crossref] [PubMed]

Wynands, R.

R. Wynands and S. Weyers, “Atomic fountain clocks,” Metrologia 42, S64 ( 2005).

Zaccanti, M.

M. Fattori, C. D’Errico, G. Roati, M. Zaccanti, M. Jona-Lasinio, M. Modugno, M. Inguscio, and G. Modugno, “Atom Interferometry with a Weakly Interacting Bose-Einstein Condensate,” Phys. Rev. Lett. 100, 080405 ( 2008).
[Crossref] [PubMed]

Nat. Phys. (1)

N. P. Robins, C. Figl, M. Jeppesen, G. R. Dennis, and J. D. Close, “A pumped atom laser,” Nat. Phys. 4, 731 ( 2008).
[Crossref]

Nature (1)

J. Estève, C. Gross, A. Weller, S. Giovanazzi, and M. K. Oberthaler, “Squeezing and entanglement in a BoseEinstein condensate,” Nature 455, 1216 ( 2008).
[Crossref] [PubMed]

Opt. Express (2)

D. Döring, N. P. Robins, C. Figl, and J. D. Close, “Probing a Bose-Einstein condensate with an atom laser,” Opt. Express 16, 13893 ( 2008).

J. E. Debs, D. Döring, N. P. Robins, C. Figl, P. A. Altin, and J. D. Close, “A two-state Raman coupler for coherent atom optics,” Opt. Express 17, 2319 ( 2009).
[Crossref] [PubMed]

Opt. Lett. (1)

Phys. Rev. (1)

N. F. Ramsey, “A Molecular Beam Resonance Method with Separated Oscillating Fields,” Phys. Rev. 78, 695 ( 1950).
[Crossref]

Phys. Rev. A (8)

D. Döring, G. R. Dennis, N. P. Robins, M. Jeppesen, C. Figl, J. J. Hope, and J. D. Close, “Pulsed pumping of a Bose-Einstein condensate,” Phys. Rev. A 79, 063630 ( 2009).
[Crossref]

T. Müller, T. Wendrich, M. Gilowski, C. Jentsch, E. M. Rasel, and W. Ertmer, “Versatile compact atomic source for high-resolution dual atom interferometry,” Phys. Rev. A 76, 063611 ( 2007).
[Crossref]

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[Crossref]

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[Crossref]

Y. Torii, Y. Suzuki, M. Kozuma, T. Sugiura, T. Kuga, L. Deng, and E.W. Hagley, “Mach-Zehnder Bragg interferometer for a Bose-Einstein condensate,” Phys. Rev. A 61, 041602(R) ( 2000).
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[Crossref]

S. Dimopoulos, P. W. Graham, J. M. Hogan, M. A. Kasevich, and S. Rajendran, “Atomic gravitational wave interferometric sensor,” Phys. Rev. D 78, 122002 ( 2008).
[Crossref]

Phys. Rev. Lett. (9)

M. Fattori, C. D’Errico, G. Roati, M. Zaccanti, M. Jona-Lasinio, M. Modugno, M. Inguscio, and G. Modugno, “Atom Interferometry with a Weakly Interacting Bose-Einstein Condensate,” Phys. Rev. Lett. 100, 080405 ( 2008).
[Crossref] [PubMed]

W. Li, A. K. Tuchman, H-C Chien, and M. A. Kasevich, “Extended Coherence Time with Atom-Number Squeezed States,” Phys. Rev. Lett. 98, 040402 ( 2007).
[Crossref] [PubMed]

G.-B. Jo, Y. Shin, S. Will, T. A. Pasquini, M. Saba, W. Ketterle, D. E. Pritchard, M. Vengalattore, and M. Prentiss, “Long Phase Coherence Time and Number Squeezing of Two Bose-Einstein Condensates on an Atom Chip,” Phys. Rev. Lett. 98, 030407 ( 2007).
[Crossref] [PubMed]

M. T. Johnsson and S. A. Haine, “Generating Quadrature Squeezing in an Atom Laser through Self-Interaction,” Phys. Rev. Lett. 99, 010401 ( 2007).
[Crossref] [PubMed]

G. Lamporesi, A. Bertoldi, L. Cacciapuoti, M. Prevedelli, and G. M. Tino, “Determination of the Newtonian Gravitational Constant Using Atom Interferometry,” Phys. Rev. Lett. 100, 050801 ( 2008).
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S. Gupta, K. Dieckmann, Z. Hadzibabic, and D. E. Pritchard, “Contrast Interferometry using Bose-Einstein Condensates to Measure h/m and a,” Phys. Rev. Lett. 89, 140401 ( 2002).
[Crossref] [PubMed]

M. Cadoret, E. de Mirandes, P Cladé, S. Guellati-Khélifa, C Schwob, F. Nez, L. Julien, and F. Biraben, “Combination of Bloch Oscillations with a Ramsey-Bordé Interferometer: New Determination of the Fine Structure Constant,” Phys. Rev. Lett. 101, 230801 ( 2008).
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M-O. Mewes, M. R. Andrews, D. M. Kurn, D. S. Durfee, C. G. Townsend, and W. Ketterle, “Output Coupler for Bose-Einstein Condensed Atoms,” Phys. Rev. Lett. 78, 582 ( 1997).
[Crossref]

I. Bloch, M. Köhl, M. Greiner, T. W. Hänsch, and T. Esslinger, “Optics with an Atom Laser Beam,” Phys. Rev. Lett. 87, 030401 ( 2001).
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Rev. Mod. Phys. (1)

A. D. Cronin, J. Schmiedmayer, and D. E. Pritchard, “Optics and interferometry with atoms and molecules,” Rev. Mod. Phys. 81, 1051 ( 2009).
[Crossref]

Science (1)

J. B. Fixler, G. T. Foster, J. M. McGuirk, and M. A. Kasevich, “Atom Interferometer Measurement of the Newtonian Constant of Gravity,” Science 315, 74 ( 2007).
[Crossref] [PubMed]

Other (3)

R. Wynands and S. Weyers, “Atomic fountain clocks,” Metrologia 42, S64 ( 2005).

M. H. Schleier-Smith, I. D. Leroux, and V. Vuletić, “Reduced-Quantum-Uncertainty States of an Ensemble of Two-Level Atoms,” arXiv:0810.2582v1

J. Appel, P. J. Windpassinger, D. Oblak, U. B. Hoff, N. Kjærgaard, and E. S. Polzik, “Mesoscopic atomic entanglement for precision measurements beyond the standard quantum limit,” arXiv:0810.3545v1

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Figures (3)

Fig. 1.
Fig. 1.

(a) Level scheme and (b) experimental setup of the Raman beam splitters for the atom interferometer. The atom laser pulse propagates under gravity through the two beam splitters and is subsequently imaged via a state selective absorption imaging scheme. Splitting the optical beam path with a calcite crystal close to the atom laser interferometer allows for improved relative stability of the two beam splitter positions. The light source is an external cavity diode laser (ECDL), in combination with an electro-optic modulator (EOM) placed in one arm of a Mach-Zehnder interferometer (MZI).

Fig. 2.
Fig. 2.

Ramsey fringes measured over a range of 6.5kHz. The red solid curve shows an experimental data set, and the blue dashed curve depicts simulated Ramsey fringes for comparable experimental conditions. The upper (lower) clouds of atoms in the absorption pictures above the graph show the population in the |F=2,mF =0〉 (|F=1,mF =0〉) state, for different detunings from two-photon resonance. Two adjacent absorption pictures correspond to a frequency difference of 20Hz.

Fig. 3.
Fig. 3.

Noise measurement for a typical sequence of Ramsey fringes. Each data point is averaged over five experimental runs. The red dots (blue circles) show the population in the |F=2,mF =0〉(|F=1,mF =0〉) state.

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