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H. Vahlbruch, M. Mehmet, N. Lastzka, B. Hage, S. Chelkowski, A. Franzen, S. Gossler, K. Danzmann, and R. Schnabel, “Observation of squeezed light with 10 dB quantum noise reduction,” Phys. Rev. Lett. 100, 033602 (2008).

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T. C. Ralph, A. Gilchrist, G. J. Milburn, W. J. Munro, and S. Glancy, “Quantum computation with optical coherent states,” Phys. Rev. A 68, 042319 (2003).

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[CrossRef]
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[CrossRef]

H. Vahlbruch, M. Mehmet, N. Lastzka, B. Hage, S. Chelkowski, A. Franzen, S. Gossler, K. Danzmann, and R. Schnabel, “Observation of squeezed light with 10 dB quantum noise reduction,” Phys. Rev. Lett. 100, 033602 (2008).

[CrossRef]
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[CrossRef]
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[CrossRef]
[PubMed]

A. Auffeves, P. Maioli, T. Meunier, S. Gleyzes, G. Nogues, M. Brune, J.-M. Raimond, and S. Haroche, “Entanglement of a mesoscopic field with an atom induced by photon graininess in a cavity,” Phys. Rev. Lett. 91, 230405 (2003).

[CrossRef]
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M. Brune, E. Hagley, J. Dreyer, X. Maître, A. Maali, C. Wunderlich, J. M. Raimond, and S. Haroche, “Observing the progressive decoherence of the meter in a quantum measurement,” Phys. Rev. Lett. 77, 4887-4890 (1996).

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[CrossRef]
[PubMed]

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[CrossRef]

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[CrossRef]
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[CrossRef]

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[CrossRef]
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E. Waks, K. Inoue, W. D. Oliver, E. Diamanti, and Y. Yamamoto, “High efficiency photon number detection for quantum information processing,” IEEE J. Quantum Electron. 9, 1502-1511 (2003).

[CrossRef]

H. Jeong, “Using weak nonlinearity under decoherence for macroscopic entanglement generation and quantum computation,” Phys. Rev. A 72, 034305 (2005).

[CrossRef]

H. Jeong, A. P. Lund, and T. C. Ralph, “Production of superpositions of coherent states in traveling optical fields with inefficient photon detection,” Phys. Rev. A 72, 013801 (2005).

[CrossRef]

M. S. Kim, E. Park, P. L. Knight, and H. Jeong, “Nonclassicality of a photon-subtracted Gaussian field,” Phys. Rev. A 71, 043805 (2005).

[CrossRef]

H. Jeong, M. S. Kim, T. C. Ralph, and B. S. Ham, “Generation of macroscopic superposition states with small nonlinearity,” Phys. Rev. A 70, 061801 (2004).

[CrossRef]

A. P. Lund, H. Jeong, T. C. Ralph, and M. S. Kim, “Conditional production of superpositions of coherent states with inefficient photon detection,” Phys. Rev. A 70, 020101 (2004).

[CrossRef]

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Although Eq. appears in , they discussed neither the relationship between fidelity and cat amplitude nor the cat's phase's dependence on the homodyne measurement result.

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