Short-time squeezing effects in spontaneous and stimulated six-wave mixing process

Giri, Dilip Kumar; Gupta, Partha Sarathi

doi:10.1016/s0030-4018(03)01464-0

Cited by 33 publications

(6 citation statements)

References 17 publications

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“…Higher order extensions of these nonclassical states have only been introduced in the recent past [4][5][6][7]. Among these higher order nonclassical effects, higher order squeezing has already been studied in detail [4,5,8,9] but the higher order antibunching (HOA) is not yet studied rigorously. The idea of HOA was introduced by Lee in a pioneering paper [6] in 1990; since then it has been predicted in the two-photon coherent state [6], trio coherent state [10] and in the interaction of an intense laser beam with an inversion symmetric third-order nonlinear medium [11].…”

Section: Introductionmentioning

confidence: 99%

Higher order antibunching is not a rare phenomenon

Gupta¹,

Pandey²,

Pathak³

2006

J. Phys. B: At. Mol. Opt. Phys.

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Since the introduction of higher order nonclassical effects, higher order squeezing has been reported in a number of different physical systems but higher order antibunching is predicted only in three particular cases. In the present work, we have shown that the higher order antibunching is not a rare phenomenon; rather it can be seen in many simple optical processes. To establish our claim, we have shown it in the six wave mixing process, four wave mixing process and second harmonic generation process.

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Section: Introductionmentioning

confidence: 99%

Higher order antibunching is not a rare phenomenon

Gupta¹,

Pandey²,

Pathak³

2006

J. Phys. B: At. Mol. Opt. Phys.

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“…Materials with a large, fifth-order (χ (5) ) response, for example, can lead to new phenomena, such as liquid light condensates [10] and transverse pattern and soliton formation [11], and play an important role in quantum information networks through enabling 3-qubit quantum processing [12,13], providing new sources of correlated pulse pairs [14], and acting as quantum memories [14,15]. Quintic media can also improve high-precision measurements [16] and reduce phase noise for enhanced interferometry performance [17]. Thus, the realization of efficient χ (5) materials is important for fundamental studies in quantum nonlinear optics as well as improving the performance of NLO devices.…”

mentioning

confidence: 99%

High-order optical nonlinearity at low light levels

Greenberg¹,

Gauthier²

2012

EPL

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We observe a nonlinear optical process in a gas of cold atoms that simultaneously displays the largest reported fifth-order nonlinear susceptibility χ (5) = 1.9×10 −12 (m/V) 4 and high transparency.The nonlinearity results from the simultaneous cooling and crystallization of the gas, and gives rise to efficient Bragg scattering in the form of six-wave-mixing at low-light-levels. For large atom-photon coupling strengths, the back-action of the scattered fields influences the light-matter dynamics. This system may have important applications in many-body physics, quantum information processing, and multidimensional soliton formation.

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“…Using (25) and (40), the statistics of fundamental mode in degenerate six-wave mixing is found to be sub-Poissonian, as…”

Section: Squeezing Sub-poissonian and Total Noise In Fundamental Modmentioning

confidence: 99%

“…Squeezing has been focused on theoretical investigations and experimental observations in a variety of nonlinear optical processes, such as harmonic generation [20,21], multiwave mixing processes [22][23][24][25], Raman [26][27][28], hyper-Raman [29], Hong and Mandel [30,31], Hillery [32][33][34], and Zhan [35] for improving the performance of many optical devices and optical communication networks. Squeezing and photon statistical effect of the field amplitude in optical parametric, and in Raman and hyper Raman scattering processes has also been reported by Perina [36].…”

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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Short-time squeezing effects in spontaneous and stimulated six-wave mixing process

Cited by 33 publications

References 17 publications

Higher order antibunching is not a rare phenomenon

Higher order antibunching is not a rare phenomenon

High-order optical nonlinearity at low light levels

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

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