Study of higher order squeezing and subpoissonian photon statistics in generalised binomial state of light

2019 ◽  
Author(s):  
Amit Verma
2002 ◽  
Vol 212 (1-3) ◽  
pp. 107-114 ◽  
Author(s):  
Youngchul Kim ◽  
Tai Hyun Yoon

2002 ◽  
Vol 19 (6) ◽  
pp. 1471 ◽  
Author(s):  
Daniel Erenso ◽  
Reeta Vyas ◽  
Surendra Singh

2010 ◽  
Vol 88 (5) ◽  
pp. 349-356
Author(s):  
Shuang-Xi Zhang ◽  
Hong-Chun Yuan ◽  
Hong-Yi Fan

By extending the usual two-mode squeezing operator S2 = exp[iλ(Q1P2 + Q2P1)] to the three-mode squeezing operator S3 = exp{iλ[Q1(P2 + P3) + Q2(P1 + P3) + Q3(P1 + P2)]}, we obtain the corresponding three-mode squeezed coherent state. The higher order properties of this state, such as higher order squeezing and higher order sub-Possonian photon statistics, are investigated. It is found that the new squeezed state not only can be squeezed to all even orders but also exhibits squeezing enhancement compared with the usual cases. In addition, we examine the violation of the Bell inequality for the three-mode squeezed states by using the formalism of Wigner representation.


2010 ◽  
Vol 42 (4) ◽  
pp. 215-229
Author(s):  
D. K. Giri ◽  
P. S. Gupta ◽  
M. K. Mahan ◽  
Ajay Prasad

Author(s):  
Deepak Deepak ◽  
Arpita Chatterjee

We consider an experimentally obtainable SUP operator, defined by using a generalized superposition of products of field annihilation (a) and creation (a<sup>†</sup>) operators of the type, A = saa<sup>†</sup> + ta<sup>†</sup>a with s<sup>2</sup> + t<sup>2</sup>=1. We apply this SUP operator on coherent and thermal quantum states, the states thus produced are referred as SUP-operated coherent state (SOCS) and SUP-operated thermal state (SOTS), respectively. In the present work, we report a comparative study between the higher-order nonclassical properties of SOCS and SOTS. The comparison is performed by using a set of nonclassicality witnesses (e.g., higher-order antiubunching, higher-order sub-Poissonian photon statistics, higher-order squeezing, Agarwal-Tara parameter, Klyshko's condition). The existence of higher-order nonclassicalities in SOCS and SOTS have been investigated for the first time. In view of possible experimental verification of the proposed scheme, we present exact calculations to reveal the effect of non-unit quantum efficiency of quantum detector on higher-order nonclassicalities.


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