Quasiprobability Distribution Functions of Squeezed Pair Coherent States

2009 ◽  
Vol 48 (8) ◽  
pp. 2390-2400 ◽  
Author(s):  
Xiang-Guo Meng ◽  
Ji-Suo Wang ◽  
Bao-Long Liang
Keyword(s):  
Coherent States ◽  
Distribution Functions ◽  
Quasiprobability Distribution

scholarly journals Maximally Entangled SU(1,1) Semi Coherent States

2021 ◽  
Author(s):  
A.-S. F. Obada ◽  
M. M. A. Ahmed ◽  
Hoda A. Ali ◽  
Somia Abd-Elnabi ◽  
S. Sanad
Keyword(s):  
Distribution Function ◽  
Correlation Function ◽  
Probability Distribution Function ◽  
Coherent States ◽  
Distribution Functions ◽  
Entangled States ◽  
Nonclassical Properties ◽  
Quadrature Squeezing ◽  
Maximally Entangled States ◽  
Quasiprobability Distribution

AbstractIn this paper, we consider a special type of maximally entangled states namely by entangled SU(1,1) semi coherent states by using SU(1,1) semi coherent states(SU(1,1) Semi CS). The entanglement characteristics of these entangled states are studied by evaluating the concurrence.We investigate some of their nonclassical properties,especially probability distribution function,second-order correlation function and quadrature squeezing . Further, the quasiprobability distribution functions (Q-functions) is discussed.

scholarly journals Quasiprobability distribution functions for periodic phase spaces: I. Theoretical aspects

2006 ◽  
Vol 39 (31) ◽  
pp. 9881-9890 ◽  
Author(s):  
M Ruzzi ◽  
M A Marchiolli ◽  
E C da Silva ◽  
D Galetti
Keyword(s):  
Distribution Functions ◽  
Quasiprobability Distribution

SUPERPOSITIONS OF SQUEEZED COHERENT STATES: PROPERTIES AND GENERATION

1999 ◽  
Vol 13 (17) ◽  
pp. 2299-2312 ◽  
Author(s):  
A.-S. F. OBADA ◽  
G. M. ABD AL-KADER
Keyword(s):  
Distribution Function ◽  
Phase Space ◽  
Coherent States ◽  
Phase Distribution ◽  
Coherence Function ◽  
Photon Number ◽  
Distribution Functions ◽  
Numerical Results ◽  
Quadrature Component ◽  
Photon Number Distribution

The s-parameterized charactristic function for the superposition of squeezed coherent states (SCS's) is given. The s-parameterized distribution functions for the superposition of SCS's are investigated. Various moments are calculated by using this charactristic function. The Glauber second-order coherence function is calculated. The photon number distribution of the superposition of SCS's studied. Analytical and numerical results for the quadrature component distributions for the superposition of a pair of SCS's are presented. The phase distribution calculated from the integration of s-parameterized distribution function over the phase space. A generation scheme is discussed.

GENERALIZED EXCITED NEGATIVE BINOMIAL STATES OF ELECTROMAGNETIC FIELD AND SOME OF THEIR NON-CLASSICAL PROPERTIES

2003 ◽  
Vol 17 (07) ◽  
pp. 1071-1086 ◽  
Author(s):  
H. H. SALAH ◽  
M. DARWISH ◽  
A.-S. F. OBADA
Keyword(s):  
Electromagnetic Field ◽  
Correlation Function ◽  
Probability Distribution ◽  
Wigner Function ◽  
Coherent States ◽  
Negative Binomial ◽  
Distribution Functions ◽  
Probability Distribution Functions ◽  
New States ◽  
Q Function

New states of electromagnetic field, generalized excited negative binomial states are introduced here. These states interpolate between the superposition of two excited coherent states and number states. The non-classical properties for these states are discussed, such as, second order correlation function, squeezing phenomena [normal squeezing and amplitude squared squeezing], phase properties in Pegg–Barnett formalism and the quasi-probability distribution functions (Q-function and Wigner function).

scholarly journals STATISTICAL PROPERTIES OF KLAUDER–PERELOMOV COHERENT STATES FOR THE MORSE POTENTIAL

2004 ◽  
Vol 18 (03) ◽  
pp. 325-336 ◽  
Author(s):  
M. DAOUD ◽  
D. POPOV
Keyword(s):  
Coherent States ◽  
Morse Potential ◽  
Ideal Gas ◽  
Distribution Functions ◽  
Statistical Properties ◽  
Canonical Ideal ◽  
Thermal Expectations ◽  
Morse Oscillators ◽  
P Distribution

We present in this letter a realistic construction of the coherent states for the Morse potential using the Klauder–Perelomov approach. We discuss the statistical properties of these states, by deducing the Q- and P-distribution functions. The thermal expectations for the quantum canonical ideal gas of the Morse oscillators are also calculated.

INFLUENCE OF SQUEEZING OPERATOR ON THE QUANTUM PROPERTIES OF VARIOUS BINOMIAL STATES

2001 ◽  
Vol 15 (01) ◽  
pp. 75-100 ◽  
Author(s):  
FAISAL A. A. EL-ORANY ◽  
M. SEBAWE ABDALLA ◽  
A-.S. F. OBADA ◽  
G. M. ABD AL-KADER
Keyword(s):  
Distribution Function ◽  
Correlation Function ◽  
Phase Distribution ◽  
Single Mode ◽  
Second Order ◽  
Distribution Functions ◽  
Quantum Properties ◽  
Quadrature Phase ◽  
Squeezing Operator ◽  
Quasiprobability Distribution

In this communication we investigate the action of a single-mode squeeze operator on the statistical behaviour of different binomial states. For the resulting states (squeezed generalized binomial states) normalized second-order correlation function, quasiprobability distribution functions and the distribution function P(x) associated with the quadrature x are studied both analytically and numerically. Furthermore, the quadrature phase distribution as well as the phase distribution in the framework of Pegg–Barnett formalism are discussed.

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