Abstract

We have observed a dispersionlike absorption (or gain) spectrum at the D1 transition in a Rb vapor cell filled with a buffer gas, due to Zeeman coherence of the ground states in a double Λ configuration. Meanwhile, we have also observed superluminal pulse propagation. It is experimentally demonstrated that the front speed of a light pulse still equals the light speed c in vacuum, although the group velocity of the light pulse is(−2.2±0.6)×104 m/s.

© 2006 Optical Society of America

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  1. R. Y. Chiao, Phys. Rev. A 48, R34 (1993).
    [CrossRef]
  2. R. W. Boyd and D. J. Gauthier, in Progress in Optics, E.Wolf, ed. (Elsevier, 2002), Vol. 43, p. 497.
  3. R. Y. Chiao and A. M. Steinberg, in Progress in Optics, E.Wolf, ed. (Elsevier, 1997), Vol. 37, p. 347.
  4. L. J. Wang, A. Kuzmich, and A. Dogarlu, Nature 406, 277 (2000).
    [CrossRef]
  5. L. V. Hau, S. E. Harris, Z. Dutton, and C. Behroozi, Nature 397, 594 (1999).
    [CrossRef]
  6. D. F. Phillips, A. Fleischhauer, A. Mair, R. L. Walsworth, and M. D. Lukin, Phys. Rev. Lett. 86, 783 (2001).
    [CrossRef]
  7. M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Nature 425, 695 (2003).
    [CrossRef]
  8. M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Phys. Rev. Lett. 94, 053902 (2005).
    [CrossRef]
  9. E. E. Mikhailov, I. Novikova, Y. V. Rostovtsov, and G. R. Welch, Phys. Rev. A 70, 033806 (2004).
    [CrossRef]
  10. J. Vanier, A. Godone, and F. Levi, Phys. Rev. A 58, 2345 (1998).
    [CrossRef]
  11. R. H. Dicke, Phys. Rev. 89, 472 (1953).
    [CrossRef]
  12. J.Vanier and C.Audoin, eds., The Quantum Physics of Atomic Frequency Standards (Taylor & Francis, 1989), Vol. 1.
  13. J. D. Jackson, Classical Electrodynamics, 3rd ed. (Wiley, 1998), p. 334.

2005

M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Phys. Rev. Lett. 94, 053902 (2005).
[CrossRef]

2004

E. E. Mikhailov, I. Novikova, Y. V. Rostovtsov, and G. R. Welch, Phys. Rev. A 70, 033806 (2004).
[CrossRef]

2003

M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Nature 425, 695 (2003).
[CrossRef]

2001

D. F. Phillips, A. Fleischhauer, A. Mair, R. L. Walsworth, and M. D. Lukin, Phys. Rev. Lett. 86, 783 (2001).
[CrossRef]

2000

L. J. Wang, A. Kuzmich, and A. Dogarlu, Nature 406, 277 (2000).
[CrossRef]

1999

L. V. Hau, S. E. Harris, Z. Dutton, and C. Behroozi, Nature 397, 594 (1999).
[CrossRef]

1998

J. Vanier, A. Godone, and F. Levi, Phys. Rev. A 58, 2345 (1998).
[CrossRef]

1993

R. Y. Chiao, Phys. Rev. A 48, R34 (1993).
[CrossRef]

1953

R. H. Dicke, Phys. Rev. 89, 472 (1953).
[CrossRef]

Behroozi, C.

L. V. Hau, S. E. Harris, Z. Dutton, and C. Behroozi, Nature 397, 594 (1999).
[CrossRef]

Boyd, R. W.

R. W. Boyd and D. J. Gauthier, in Progress in Optics, E.Wolf, ed. (Elsevier, 2002), Vol. 43, p. 497.

Chiao, R. Y.

R. Y. Chiao, Phys. Rev. A 48, R34 (1993).
[CrossRef]

R. Y. Chiao and A. M. Steinberg, in Progress in Optics, E.Wolf, ed. (Elsevier, 1997), Vol. 37, p. 347.

Dicke, R. H.

R. H. Dicke, Phys. Rev. 89, 472 (1953).
[CrossRef]

Dogarlu, A.

L. J. Wang, A. Kuzmich, and A. Dogarlu, Nature 406, 277 (2000).
[CrossRef]

Dutton, Z.

L. V. Hau, S. E. Harris, Z. Dutton, and C. Behroozi, Nature 397, 594 (1999).
[CrossRef]

Fleischhauer, A.

D. F. Phillips, A. Fleischhauer, A. Mair, R. L. Walsworth, and M. D. Lukin, Phys. Rev. Lett. 86, 783 (2001).
[CrossRef]

Gauthier, D. J.

M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Phys. Rev. Lett. 94, 053902 (2005).
[CrossRef]

M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Nature 425, 695 (2003).
[CrossRef]

R. W. Boyd and D. J. Gauthier, in Progress in Optics, E.Wolf, ed. (Elsevier, 2002), Vol. 43, p. 497.

Godone, A.

J. Vanier, A. Godone, and F. Levi, Phys. Rev. A 58, 2345 (1998).
[CrossRef]

Harris, S. E.

L. V. Hau, S. E. Harris, Z. Dutton, and C. Behroozi, Nature 397, 594 (1999).
[CrossRef]

Hau, L. V.

L. V. Hau, S. E. Harris, Z. Dutton, and C. Behroozi, Nature 397, 594 (1999).
[CrossRef]

Jackson, J. D.

J. D. Jackson, Classical Electrodynamics, 3rd ed. (Wiley, 1998), p. 334.

Kuzmich, A.

L. J. Wang, A. Kuzmich, and A. Dogarlu, Nature 406, 277 (2000).
[CrossRef]

Levi, F.

J. Vanier, A. Godone, and F. Levi, Phys. Rev. A 58, 2345 (1998).
[CrossRef]

Lukin, M. D.

D. F. Phillips, A. Fleischhauer, A. Mair, R. L. Walsworth, and M. D. Lukin, Phys. Rev. Lett. 86, 783 (2001).
[CrossRef]

Mair, A.

D. F. Phillips, A. Fleischhauer, A. Mair, R. L. Walsworth, and M. D. Lukin, Phys. Rev. Lett. 86, 783 (2001).
[CrossRef]

Mikhailov, E. E.

E. E. Mikhailov, I. Novikova, Y. V. Rostovtsov, and G. R. Welch, Phys. Rev. A 70, 033806 (2004).
[CrossRef]

Neifeld, M. A.

M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Phys. Rev. Lett. 94, 053902 (2005).
[CrossRef]

M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Nature 425, 695 (2003).
[CrossRef]

Novikova, I.

E. E. Mikhailov, I. Novikova, Y. V. Rostovtsov, and G. R. Welch, Phys. Rev. A 70, 033806 (2004).
[CrossRef]

Phillips, D. F.

D. F. Phillips, A. Fleischhauer, A. Mair, R. L. Walsworth, and M. D. Lukin, Phys. Rev. Lett. 86, 783 (2001).
[CrossRef]

Rostovtsov, Y. V.

E. E. Mikhailov, I. Novikova, Y. V. Rostovtsov, and G. R. Welch, Phys. Rev. A 70, 033806 (2004).
[CrossRef]

Steinberg, A. M.

R. Y. Chiao and A. M. Steinberg, in Progress in Optics, E.Wolf, ed. (Elsevier, 1997), Vol. 37, p. 347.

Stenner, M. D.

M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Phys. Rev. Lett. 94, 053902 (2005).
[CrossRef]

M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Nature 425, 695 (2003).
[CrossRef]

Vanier, J.

J. Vanier, A. Godone, and F. Levi, Phys. Rev. A 58, 2345 (1998).
[CrossRef]

Walsworth, R. L.

D. F. Phillips, A. Fleischhauer, A. Mair, R. L. Walsworth, and M. D. Lukin, Phys. Rev. Lett. 86, 783 (2001).
[CrossRef]

Wang, L. J.

L. J. Wang, A. Kuzmich, and A. Dogarlu, Nature 406, 277 (2000).
[CrossRef]

Welch, G. R.

E. E. Mikhailov, I. Novikova, Y. V. Rostovtsov, and G. R. Welch, Phys. Rev. A 70, 033806 (2004).
[CrossRef]

Nature

L. J. Wang, A. Kuzmich, and A. Dogarlu, Nature 406, 277 (2000).
[CrossRef]

L. V. Hau, S. E. Harris, Z. Dutton, and C. Behroozi, Nature 397, 594 (1999).
[CrossRef]

M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Nature 425, 695 (2003).
[CrossRef]

Phys. Rev.

R. H. Dicke, Phys. Rev. 89, 472 (1953).
[CrossRef]

Phys. Rev. A

E. E. Mikhailov, I. Novikova, Y. V. Rostovtsov, and G. R. Welch, Phys. Rev. A 70, 033806 (2004).
[CrossRef]

J. Vanier, A. Godone, and F. Levi, Phys. Rev. A 58, 2345 (1998).
[CrossRef]

R. Y. Chiao, Phys. Rev. A 48, R34 (1993).
[CrossRef]

Phys. Rev. Lett.

D. F. Phillips, A. Fleischhauer, A. Mair, R. L. Walsworth, and M. D. Lukin, Phys. Rev. Lett. 86, 783 (2001).
[CrossRef]

M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Phys. Rev. Lett. 94, 053902 (2005).
[CrossRef]

Other

R. W. Boyd and D. J. Gauthier, in Progress in Optics, E.Wolf, ed. (Elsevier, 2002), Vol. 43, p. 497.

R. Y. Chiao and A. M. Steinberg, in Progress in Optics, E.Wolf, ed. (Elsevier, 1997), Vol. 37, p. 347.

J.Vanier and C.Audoin, eds., The Quantum Physics of Atomic Frequency Standards (Taylor & Francis, 1989), Vol. 1.

J. D. Jackson, Classical Electrodynamics, 3rd ed. (Wiley, 1998), p. 334.

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