Minimum Total Noise in Wave-Mixing Processes

Gill, Savita; Rani, Sunil; Singh, Nafa

doi:10.1155/2012/431826

Cited by 6 publications

(1 citation statement)

References 15 publications

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“…Further, the notion of total noise in relation to squeezing of a field state has been given by Hillery [42] that reported about the measurement of the size of the field amplitude fluctuations of a state of the field. Furthermore, Gupta et al [43] and Gill et al [44] have also stated that the squeezing and total noise present in the system can be tuned by varying the phase angle.…”

Section: Introductionmentioning

confidence: 99%

Squeezing, Sub-Poissonian and Total Noise in Degenerate Six-Wave Mixing Process

Choudhary¹,

Giri²

2018

Acta Phys. Pol. A

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We study a single-mode squeezing, sub-Poissonian and total noise in degenerate six-wave mixing process. We establish the analytic expression of first-order and second-order squeezing in terms of total noise under short-time approximation in degenerate six-wave mixing process. It shows that higher-order squeezing allows a much larger fractional noise reduction than lower-order squeezing. We observe that the squeezed states are associated with large number of photons. We find that squeezing is greater in stimulated process than corresponding squeezing in spontaneous interaction. The photon statistics of the pump mode in the process is investigated and found to be sub-Poissonian in nature. The effect of sub-Poissonian nature of an optical field in terms of total noise is also incorporated. We show that the depth of nonclassicality directly depends on the amount of total noise present in the system. This suggests that the more squeezed the state is, the greater is its total noise in the system.

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Section: Introductionmentioning

confidence: 99%