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Measure of the nonclassicality of nonclassical states
Abstract
A continuous parameter introduced into the convolution transformation between P and Q functions leads to a measure of how nonclassical quantum states are with values ranging from 0 to 1: For photon-number states, the value is 1, the maximum possible. For squeezed vacuum states, it is a monotonically increasing function of the squeeze parameter with values varying from 0 to 1/2. This measure is identical to the minimum number of thermal photon necessary to destroy whatever nonclassical effects existing in the quantum states.
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Citations
Cited by
Negativity of the Wigner function as an indicator of non-classicality
Kenfack, A., & yczkowski, K. (2004) · Journal of Optics B: Quantum and Semiclassical Optics · doi:10.1088/1464-4266/6/10/003 · Cited by 779
Interference of light and Bell's theorem
Belinskiĭ, A. V., & Klyshko, D. N. (1993) · Physics-Uspekhi · doi:10.1070/pu1993v036n08abeh002299 · Cited by 465
Computable Measure of Nonclassicality for Light
Asbóth, J. K., Calsamiglia, J., & Ritsch, H. (2005) · Physical Review Letters · doi:10.1103/physrevlett.94.173602 · Cited by 323
Multiphoton quantum optics and quantum state engineering
Dell’Anno, F., De Siena, S., & Illuminati, F. (2006) · Physics Reports · doi:10.1016/j.physrep.2006.01.004 · Cited by 310
Nonclassicality as a Quantifiable Resource for Quantum Metrology
Kwon, H., Tan, K. C., Volkoff, T., & Jeong, H. (2019) · Physical Review Letters · doi:10.1103/physrevlett.122.040503 · Cited by 165
Metadata
- Authors
- Lee, C. T.
- Venue
- Physical Review A
- Publisher
- American Physical Society (APS)
- Published
- 1991-09-01
- Volume
- 44
- Issue
- 5
- Pages
- R2775-R2778
- ISSN
- 0556-2791 (ISSN-L)
- 1050-2947
- 1094-1622
- OpenAlex
- W1987814534
- Cited by
- 361
- References
- 0
- FWCI
- 0.69
- Type
- journal article
- Language
- en
- Open access
- closed
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- Lee, C. T. (1991). Measure of the nonclassicality of nonclassical states. Physical Review A. https://doi.org/10.1103/physreva.44.r2775
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