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Non-classicality and coherence of squeezed states

Author

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  • Honegger, Reinhard
  • Rieckers, Alfred

Abstract

After having set up a concise frame for pure and mixed all-order coherent states, we let them undergo a rather general squeezing transformation. These squeezed states are always non-classical, but some—apparently experimentally preparable—of them are still second-order coherent. They combine peculiar properties of their quantum fluctuations with the ordering features of coherence, and deserve special attention. Quite generally, several criteria for non-classicality are discussed and applied to the considered class of squeezed states. The connection between non-classicality and anti-bunching resp. sub-Poissonian photon statistics is shown to be more subtle than quantum optical usage suggests.

Suggested Citation

  • Honegger, Reinhard & Rieckers, Alfred, 2004. "Non-classicality and coherence of squeezed states," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 335(3), pages 487-510.
    • Handle: RePEc:eee:phsmap:v:335:y:2004:i:3:p:487-510
    DOI: 10.1016/j.physa.2003.12.022
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