A. M. Marino and C. R. Stroud, Jr., "Deterministic secure communications using two-mode squeezed states," Phys. Rev. A 74, 022315 (2006).

[CrossRef]

S. L. Braunstein and P. van Loock, "Quantum information with continuous variables," Rev. Mod. Phys. 77, 513-577 (2005).

[CrossRef]

S. Chelkowski, H. Vahlbruch, B. Hage, A. Franzen, N. Lastzka, K. Danzmann, and R. Schnabel, "Experimental characterization of frequency-dependent squeezed light," Phys. Rev. A 71, 013806 (2005).

[CrossRef]

K. McKenzie, E. E. Mikhailov, K. Goda, P. K. Lam, N. Grosse, M. B. Gray, N. Mavalvala, and D. E. McClelland, "Quantum noise locking," J. Opt. B 7, S421-S428 (2005).

[CrossRef]

J. Zhang, "Einstein-Podolsky-Rosen sideband entanglement in broadband squeezed light," Phys. Rev. A 67, 054302 (2003).

[CrossRef]

C. Schori, J. L. Sorensen, and E. S. Polzik, "Narrow-band frequency tunable light source of continuous quadrature entanglement," Phys. Rev. A 66, 033802 (2002).

[CrossRef]

R. S. Bennink and R. W. Boyd, "Improved measurement of multimode squeezed light via an eigenmode approach," Phys. Rev. A 66, 053815 (2002).

[CrossRef]

C. Silberhorn, N. Korolkova, and G. Leuchs, "Quantum key distribution with bright entangled beams," Phys. Rev. Lett. 88, 167902 (2002).

[CrossRef]
[PubMed]

S. F. Pereira, Z. Y. Ou, and H. J. Kimble, "Quantum communication with correlated nonclassical states," Phys. Rev. A 62, 042311 (2000).

[CrossRef]

M. D. Reid, "Quantum cryptography with a predetermined key, using continuous-variable Einstein-Podolsky-Rosen correlations," Phys. Rev. A 62, 062308 (2000).

[CrossRef]

S. L. Braunstein and H. J. Kimble, "Teleportation of continuous quantum variables," Phys. Rev. Lett. 80, 869-872 (1998).

[CrossRef]

A. Furusawa, J. L. Sørensen, S. L. Braunstein, C. A. Fuchs, H. J. Kimble, and E. S. Polzik, "Unconditional quantum teleportation," Science 282, 706-709 (1998).

[CrossRef]
[PubMed]

M. B. Gray, D. A. Shaddock, C. C. Harb, and H. A. Bachor, "Photodetector designs for low-noise, broadband, and high-power applications," Rev. Sci. Instrum. 69, 3755-3762 (1998).

[CrossRef]

C. H. Kim and P. Kumar, "Quadrature-squeezed light detection using a self-generated matched local oscillator," Phys. Rev. Lett. 73, 1605-1608 (1994).

[CrossRef]
[PubMed]

Z. Y. Ou, S. F. Pereira, H. J. Kimble, and K. C. Peng, "Realization of the Einstein-Podolsky-Rosen paradox for continuous variables," Phys. Rev. Lett. 68, 3663-3666 (1992).

[CrossRef]
[PubMed]

M. D. Reid, "Demonstration of the Einstein-Podolsky-Rosen paradox using nondegenerate parametric amplification," Phys. Rev. A 40, 913-923 (1989).

[CrossRef]
[PubMed]

R. Loudon and P. L. Knight, "Squeezed light," J. Mod. Opt. 34, 709-759 (1987).

[CrossRef]

M. J. Collett, R. Loudon, and C. W. Gardiner, "Quantum-theory of optical homodyne and heterodyne-detection," J. Mod. Opt. 34, 881-902 (1987).

[CrossRef]

H. P. Yuen and J. H. Shapiro, "Optical communication with two-photon coherent states--Part III: Quantum measurements realizable with photo-emissive detectors," IEEE Trans. Inf. Theory 26, 78-82 (1980).

[CrossRef]

A. Einstein, B. Podolsky, and N. Rosen, "Can quantum-mechanical description of physical reality be considered complete?" Phys. Rev. 47, 777-780 (1935).

[CrossRef]

M. B. Gray, D. A. Shaddock, C. C. Harb, and H. A. Bachor, "Photodetector designs for low-noise, broadband, and high-power applications," Rev. Sci. Instrum. 69, 3755-3762 (1998).

[CrossRef]

H. A. Bachor and T. C. Ralph, A Guide to Experiments in Quantum Optics, 2nd ed. (Wiley-VCH, 2004).

[CrossRef]

R. S. Bennink and R. W. Boyd, "Improved measurement of multimode squeezed light via an eigenmode approach," Phys. Rev. A 66, 053815 (2002).

[CrossRef]

R. S. Bennink and R. W. Boyd, "Improved measurement of multimode squeezed light via an eigenmode approach," Phys. Rev. A 66, 053815 (2002).

[CrossRef]

S. L. Braunstein and P. van Loock, "Quantum information with continuous variables," Rev. Mod. Phys. 77, 513-577 (2005).

[CrossRef]

S. L. Braunstein and H. J. Kimble, "Teleportation of continuous quantum variables," Phys. Rev. Lett. 80, 869-872 (1998).

[CrossRef]

A. Furusawa, J. L. Sørensen, S. L. Braunstein, C. A. Fuchs, H. J. Kimble, and E. S. Polzik, "Unconditional quantum teleportation," Science 282, 706-709 (1998).

[CrossRef]
[PubMed]

S. Chelkowski, H. Vahlbruch, B. Hage, A. Franzen, N. Lastzka, K. Danzmann, and R. Schnabel, "Experimental characterization of frequency-dependent squeezed light," Phys. Rev. A 71, 013806 (2005).

[CrossRef]

M. J. Collett, R. Loudon, and C. W. Gardiner, "Quantum-theory of optical homodyne and heterodyne-detection," J. Mod. Opt. 34, 881-902 (1987).

[CrossRef]

S. Chelkowski, H. Vahlbruch, B. Hage, A. Franzen, N. Lastzka, K. Danzmann, and R. Schnabel, "Experimental characterization of frequency-dependent squeezed light," Phys. Rev. A 71, 013806 (2005).

[CrossRef]

A. Einstein, B. Podolsky, and N. Rosen, "Can quantum-mechanical description of physical reality be considered complete?" Phys. Rev. 47, 777-780 (1935).

[CrossRef]

S. Chelkowski, H. Vahlbruch, B. Hage, A. Franzen, N. Lastzka, K. Danzmann, and R. Schnabel, "Experimental characterization of frequency-dependent squeezed light," Phys. Rev. A 71, 013806 (2005).

[CrossRef]

A. Furusawa, J. L. Sørensen, S. L. Braunstein, C. A. Fuchs, H. J. Kimble, and E. S. Polzik, "Unconditional quantum teleportation," Science 282, 706-709 (1998).

[CrossRef]
[PubMed]

A. Furusawa, J. L. Sørensen, S. L. Braunstein, C. A. Fuchs, H. J. Kimble, and E. S. Polzik, "Unconditional quantum teleportation," Science 282, 706-709 (1998).

[CrossRef]
[PubMed]

M. J. Collett, R. Loudon, and C. W. Gardiner, "Quantum-theory of optical homodyne and heterodyne-detection," J. Mod. Opt. 34, 881-902 (1987).

[CrossRef]

K. McKenzie, E. E. Mikhailov, K. Goda, P. K. Lam, N. Grosse, M. B. Gray, N. Mavalvala, and D. E. McClelland, "Quantum noise locking," J. Opt. B 7, S421-S428 (2005).

[CrossRef]

K. McKenzie, E. E. Mikhailov, K. Goda, P. K. Lam, N. Grosse, M. B. Gray, N. Mavalvala, and D. E. McClelland, "Quantum noise locking," J. Opt. B 7, S421-S428 (2005).

[CrossRef]

M. B. Gray, D. A. Shaddock, C. C. Harb, and H. A. Bachor, "Photodetector designs for low-noise, broadband, and high-power applications," Rev. Sci. Instrum. 69, 3755-3762 (1998).

[CrossRef]

K. McKenzie, E. E. Mikhailov, K. Goda, P. K. Lam, N. Grosse, M. B. Gray, N. Mavalvala, and D. E. McClelland, "Quantum noise locking," J. Opt. B 7, S421-S428 (2005).

[CrossRef]

S. Chelkowski, H. Vahlbruch, B. Hage, A. Franzen, N. Lastzka, K. Danzmann, and R. Schnabel, "Experimental characterization of frequency-dependent squeezed light," Phys. Rev. A 71, 013806 (2005).

[CrossRef]

M. B. Gray, D. A. Shaddock, C. C. Harb, and H. A. Bachor, "Photodetector designs for low-noise, broadband, and high-power applications," Rev. Sci. Instrum. 69, 3755-3762 (1998).

[CrossRef]

C. H. Kim and P. Kumar, "Quadrature-squeezed light detection using a self-generated matched local oscillator," Phys. Rev. Lett. 73, 1605-1608 (1994).

[CrossRef]
[PubMed]

S. F. Pereira, Z. Y. Ou, and H. J. Kimble, "Quantum communication with correlated nonclassical states," Phys. Rev. A 62, 042311 (2000).

[CrossRef]

A. Furusawa, J. L. Sørensen, S. L. Braunstein, C. A. Fuchs, H. J. Kimble, and E. S. Polzik, "Unconditional quantum teleportation," Science 282, 706-709 (1998).

[CrossRef]
[PubMed]

S. L. Braunstein and H. J. Kimble, "Teleportation of continuous quantum variables," Phys. Rev. Lett. 80, 869-872 (1998).

[CrossRef]

Z. Y. Ou, S. F. Pereira, H. J. Kimble, and K. C. Peng, "Realization of the Einstein-Podolsky-Rosen paradox for continuous variables," Phys. Rev. Lett. 68, 3663-3666 (1992).

[CrossRef]
[PubMed]

R. Loudon and P. L. Knight, "Squeezed light," J. Mod. Opt. 34, 709-759 (1987).

[CrossRef]

C. Silberhorn, N. Korolkova, and G. Leuchs, "Quantum key distribution with bright entangled beams," Phys. Rev. Lett. 88, 167902 (2002).

[CrossRef]
[PubMed]

K. McKenzie, E. E. Mikhailov, K. Goda, P. K. Lam, N. Grosse, M. B. Gray, N. Mavalvala, and D. E. McClelland, "Quantum noise locking," J. Opt. B 7, S421-S428 (2005).

[CrossRef]

S. Chelkowski, H. Vahlbruch, B. Hage, A. Franzen, N. Lastzka, K. Danzmann, and R. Schnabel, "Experimental characterization of frequency-dependent squeezed light," Phys. Rev. A 71, 013806 (2005).

[CrossRef]

C. Silberhorn, N. Korolkova, and G. Leuchs, "Quantum key distribution with bright entangled beams," Phys. Rev. Lett. 88, 167902 (2002).

[CrossRef]
[PubMed]

R. Loudon and P. L. Knight, "Squeezed light," J. Mod. Opt. 34, 709-759 (1987).

[CrossRef]

M. J. Collett, R. Loudon, and C. W. Gardiner, "Quantum-theory of optical homodyne and heterodyne-detection," J. Mod. Opt. 34, 881-902 (1987).

[CrossRef]

A. M. Marino and C. R. Stroud, Jr., "Deterministic secure communications using two-mode squeezed states," Phys. Rev. A 74, 022315 (2006).

[CrossRef]

K. McKenzie, E. E. Mikhailov, K. Goda, P. K. Lam, N. Grosse, M. B. Gray, N. Mavalvala, and D. E. McClelland, "Quantum noise locking," J. Opt. B 7, S421-S428 (2005).

[CrossRef]

K. McKenzie, E. E. Mikhailov, K. Goda, P. K. Lam, N. Grosse, M. B. Gray, N. Mavalvala, and D. E. McClelland, "Quantum noise locking," J. Opt. B 7, S421-S428 (2005).

[CrossRef]

K. McKenzie, E. E. Mikhailov, K. Goda, P. K. Lam, N. Grosse, M. B. Gray, N. Mavalvala, and D. E. McClelland, "Quantum noise locking," J. Opt. B 7, S421-S428 (2005).

[CrossRef]

K. McKenzie, E. E. Mikhailov, K. Goda, P. K. Lam, N. Grosse, M. B. Gray, N. Mavalvala, and D. E. McClelland, "Quantum noise locking," J. Opt. B 7, S421-S428 (2005).

[CrossRef]

S. F. Pereira, Z. Y. Ou, and H. J. Kimble, "Quantum communication with correlated nonclassical states," Phys. Rev. A 62, 042311 (2000).

[CrossRef]

Z. Y. Ou, S. F. Pereira, H. J. Kimble, and K. C. Peng, "Realization of the Einstein-Podolsky-Rosen paradox for continuous variables," Phys. Rev. Lett. 68, 3663-3666 (1992).

[CrossRef]
[PubMed]

Z. Y. Ou, S. F. Pereira, H. J. Kimble, and K. C. Peng, "Realization of the Einstein-Podolsky-Rosen paradox for continuous variables," Phys. Rev. Lett. 68, 3663-3666 (1992).

[CrossRef]
[PubMed]

S. F. Pereira, Z. Y. Ou, and H. J. Kimble, "Quantum communication with correlated nonclassical states," Phys. Rev. A 62, 042311 (2000).

[CrossRef]

Z. Y. Ou, S. F. Pereira, H. J. Kimble, and K. C. Peng, "Realization of the Einstein-Podolsky-Rosen paradox for continuous variables," Phys. Rev. Lett. 68, 3663-3666 (1992).

[CrossRef]
[PubMed]

A. Einstein, B. Podolsky, and N. Rosen, "Can quantum-mechanical description of physical reality be considered complete?" Phys. Rev. 47, 777-780 (1935).

[CrossRef]

C. Schori, J. L. Sorensen, and E. S. Polzik, "Narrow-band frequency tunable light source of continuous quadrature entanglement," Phys. Rev. A 66, 033802 (2002).

[CrossRef]

A. Furusawa, J. L. Sørensen, S. L. Braunstein, C. A. Fuchs, H. J. Kimble, and E. S. Polzik, "Unconditional quantum teleportation," Science 282, 706-709 (1998).

[CrossRef]
[PubMed]

H. A. Bachor and T. C. Ralph, A Guide to Experiments in Quantum Optics, 2nd ed. (Wiley-VCH, 2004).

[CrossRef]

M. D. Reid, "Quantum cryptography with a predetermined key, using continuous-variable Einstein-Podolsky-Rosen correlations," Phys. Rev. A 62, 062308 (2000).

[CrossRef]

M. D. Reid, "Demonstration of the Einstein-Podolsky-Rosen paradox using nondegenerate parametric amplification," Phys. Rev. A 40, 913-923 (1989).

[CrossRef]
[PubMed]

A. Einstein, B. Podolsky, and N. Rosen, "Can quantum-mechanical description of physical reality be considered complete?" Phys. Rev. 47, 777-780 (1935).

[CrossRef]

S. Chelkowski, H. Vahlbruch, B. Hage, A. Franzen, N. Lastzka, K. Danzmann, and R. Schnabel, "Experimental characterization of frequency-dependent squeezed light," Phys. Rev. A 71, 013806 (2005).

[CrossRef]

C. Schori, J. L. Sorensen, and E. S. Polzik, "Narrow-band frequency tunable light source of continuous quadrature entanglement," Phys. Rev. A 66, 033802 (2002).

[CrossRef]

M. B. Gray, D. A. Shaddock, C. C. Harb, and H. A. Bachor, "Photodetector designs for low-noise, broadband, and high-power applications," Rev. Sci. Instrum. 69, 3755-3762 (1998).

[CrossRef]

H. P. Yuen and J. H. Shapiro, "Optical communication with two-photon coherent states--Part III: Quantum measurements realizable with photo-emissive detectors," IEEE Trans. Inf. Theory 26, 78-82 (1980).

[CrossRef]

C. Silberhorn, N. Korolkova, and G. Leuchs, "Quantum key distribution with bright entangled beams," Phys. Rev. Lett. 88, 167902 (2002).

[CrossRef]
[PubMed]

C. Schori, J. L. Sorensen, and E. S. Polzik, "Narrow-band frequency tunable light source of continuous quadrature entanglement," Phys. Rev. A 66, 033802 (2002).

[CrossRef]

A. Furusawa, J. L. Sørensen, S. L. Braunstein, C. A. Fuchs, H. J. Kimble, and E. S. Polzik, "Unconditional quantum teleportation," Science 282, 706-709 (1998).

[CrossRef]
[PubMed]

A. M. Marino and C. R. Stroud, Jr., "Deterministic secure communications using two-mode squeezed states," Phys. Rev. A 74, 022315 (2006).

[CrossRef]

S. Chelkowski, H. Vahlbruch, B. Hage, A. Franzen, N. Lastzka, K. Danzmann, and R. Schnabel, "Experimental characterization of frequency-dependent squeezed light," Phys. Rev. A 71, 013806 (2005).

[CrossRef]

S. L. Braunstein and P. van Loock, "Quantum information with continuous variables," Rev. Mod. Phys. 77, 513-577 (2005).

[CrossRef]

H. P. Yuen and J. H. Shapiro, "Optical communication with two-photon coherent states--Part III: Quantum measurements realizable with photo-emissive detectors," IEEE Trans. Inf. Theory 26, 78-82 (1980).

[CrossRef]

J. Zhang, "Einstein-Podolsky-Rosen sideband entanglement in broadband squeezed light," Phys. Rev. A 67, 054302 (2003).

[CrossRef]

H. P. Yuen and J. H. Shapiro, "Optical communication with two-photon coherent states--Part III: Quantum measurements realizable with photo-emissive detectors," IEEE Trans. Inf. Theory 26, 78-82 (1980).

[CrossRef]

M. J. Collett, R. Loudon, and C. W. Gardiner, "Quantum-theory of optical homodyne and heterodyne-detection," J. Mod. Opt. 34, 881-902 (1987).

[CrossRef]

R. Loudon and P. L. Knight, "Squeezed light," J. Mod. Opt. 34, 709-759 (1987).

[CrossRef]

K. McKenzie, E. E. Mikhailov, K. Goda, P. K. Lam, N. Grosse, M. B. Gray, N. Mavalvala, and D. E. McClelland, "Quantum noise locking," J. Opt. B 7, S421-S428 (2005).

[CrossRef]

A. Einstein, B. Podolsky, and N. Rosen, "Can quantum-mechanical description of physical reality be considered complete?" Phys. Rev. 47, 777-780 (1935).

[CrossRef]

A. M. Marino and C. R. Stroud, Jr., "Deterministic secure communications using two-mode squeezed states," Phys. Rev. A 74, 022315 (2006).

[CrossRef]

S. F. Pereira, Z. Y. Ou, and H. J. Kimble, "Quantum communication with correlated nonclassical states," Phys. Rev. A 62, 042311 (2000).

[CrossRef]

M. D. Reid, "Quantum cryptography with a predetermined key, using continuous-variable Einstein-Podolsky-Rosen correlations," Phys. Rev. A 62, 062308 (2000).

[CrossRef]

M. D. Reid, "Demonstration of the Einstein-Podolsky-Rosen paradox using nondegenerate parametric amplification," Phys. Rev. A 40, 913-923 (1989).

[CrossRef]
[PubMed]

R. S. Bennink and R. W. Boyd, "Improved measurement of multimode squeezed light via an eigenmode approach," Phys. Rev. A 66, 053815 (2002).

[CrossRef]

J. Zhang, "Einstein-Podolsky-Rosen sideband entanglement in broadband squeezed light," Phys. Rev. A 67, 054302 (2003).

[CrossRef]

C. Schori, J. L. Sorensen, and E. S. Polzik, "Narrow-band frequency tunable light source of continuous quadrature entanglement," Phys. Rev. A 66, 033802 (2002).

[CrossRef]

S. Chelkowski, H. Vahlbruch, B. Hage, A. Franzen, N. Lastzka, K. Danzmann, and R. Schnabel, "Experimental characterization of frequency-dependent squeezed light," Phys. Rev. A 71, 013806 (2005).

[CrossRef]

C. H. Kim and P. Kumar, "Quadrature-squeezed light detection using a self-generated matched local oscillator," Phys. Rev. Lett. 73, 1605-1608 (1994).

[CrossRef]
[PubMed]

Z. Y. Ou, S. F. Pereira, H. J. Kimble, and K. C. Peng, "Realization of the Einstein-Podolsky-Rosen paradox for continuous variables," Phys. Rev. Lett. 68, 3663-3666 (1992).

[CrossRef]
[PubMed]

C. Silberhorn, N. Korolkova, and G. Leuchs, "Quantum key distribution with bright entangled beams," Phys. Rev. Lett. 88, 167902 (2002).

[CrossRef]
[PubMed]

S. L. Braunstein and H. J. Kimble, "Teleportation of continuous quantum variables," Phys. Rev. Lett. 80, 869-872 (1998).

[CrossRef]

S. L. Braunstein and P. van Loock, "Quantum information with continuous variables," Rev. Mod. Phys. 77, 513-577 (2005).

[CrossRef]

M. B. Gray, D. A. Shaddock, C. C. Harb, and H. A. Bachor, "Photodetector designs for low-noise, broadband, and high-power applications," Rev. Sci. Instrum. 69, 3755-3762 (1998).

[CrossRef]

A. Furusawa, J. L. Sørensen, S. L. Braunstein, C. A. Fuchs, H. J. Kimble, and E. S. Polzik, "Unconditional quantum teleportation," Science 282, 706-709 (1998).

[CrossRef]
[PubMed]

Throughout the paper, the fields are expressed in units of E_{0}=√ \hbar omega/2ε_{0}V. The frequency difference between the modes is assumed to be much smaller than the optical frequency so that E_{0} can be taken as a constant.

H. A. Bachor and T. C. Ralph, A Guide to Experiments in Quantum Optics, 2nd ed. (Wiley-VCH, 2004).

[CrossRef]