Quantum information and entropy squeezing of a two-level atom with a non-linear medium

2001 ◽  
Vol 34 (47) ◽  
pp. 10333-10333 ◽  
Author(s):  
M Abdel-Aty ◽  
M Sebawe Abdalla ◽  
A-S F Obada
Keyword(s):  
Quantum Information ◽  
Entropy Squeezing ◽  
Linear Medium ◽  
Level Atom ◽  
Non Linear

Quantum information entropy and squeezing of 𝒫𝒯-symmetric potential

2021 ◽  
Vol 36 (10) ◽  
pp. 2150065
Author(s):  
Aarti Sharma ◽  
Pooja Thakur ◽  
Girish Kumar ◽  
Anil Kumar
Keyword(s):  
Phase Transition ◽  
Quantum Information ◽  
Information Entropy ◽  
Momentum Space ◽  
Quantum Mechanical ◽  
Position Space ◽  
Entropy Squeezing ◽  
Information Theoretic ◽  
Symmetric Potential ◽  
Quantum Mechanical Systems

The information theoretic concepts are crucial to study the quantum mechanical systems. In this paper, the information densities of [Formula: see text]-symmetric potential have been demonstrated and their properties deeply analyzed. The position space and momentum space information entropy is obtained and Bialynicki-Birula–Mycielski inequality is saturated for different parameters of the potential. Some interesting features of information entropy have been discussed. The variation in these entropies is described which gets saturated for specific values of the parameter. These have also been analyzed for the [Formula: see text]-symmetry breaking case. Further, the entropy squeezing phenomenon has been investigated in position space as well as momentum space. Interestingly, [Formula: see text] phase transition conjectures the entropy squeezing in position space and momentum space.

scholarly journals Information Entropy Squeezing and Non-local Correlation Between a Two-Level Atom and Two-Mode Field Under the Classical Field Effect

2020 ◽  
Vol 8 ◽  
Author(s):  
E. M. Khalil ◽  
Sayed Abdel-Khalek ◽  
Waad Albogami ◽  
Jamel Bouslimi ◽  
Sayed M. Abo-Dahab ◽  
...  
Keyword(s):  
Information Entropy ◽  
Field Effect ◽  
Classical Field ◽  
Local Correlation ◽  
Entropy Squeezing ◽  
Mode Field ◽  
Level Atom ◽  
Non Local

scholarly journals Quantum scheme for N-level atom interacting with a two two-level atom: Atomic Fisher information and entropy squeezing

2020 ◽  
Vol 59 (3) ◽  
pp. 1259-1264 ◽  
Author(s):  
Eman M.A. Hilal ◽  
S. Alkhateeb ◽  
S. Abdel-Khalek ◽  
E.M. Khalil ◽  
Amjaad A. Almowalled
Keyword(s):  
Fisher Information ◽  
Entropy Squeezing ◽  
N Level ◽  
Level Atom

Aspects of Entropy Squeezing and Entanglement for Moving Two-Level Atom in Presence of Finite Trio Coherent State

2016 ◽  
Vol 13 (10) ◽  
pp. 7455-7459
Author(s):  
S. I Ali ◽  
A. M Mosallem ◽  
T Emam
Keyword(s):  
Entanglement Entropy ◽  
Photon Number ◽  
Atomic Motion ◽  
Von Neumann Entropy ◽  
Wehrl Entropy ◽  
Entropy Squeezing ◽  
Von Neumann ◽  
Special Values ◽  
Level Atom ◽  
Motion Parameters

In this paper, we investigate the entanglement of the interaction of three modes of radiation field with moving and unmoving two-level atom. The time evolution of the von Neumann entropy, entropy squeezing and marginal atomic Wehrl entropy is investigated. The marginal atomic Wehrl entropy as squeezing indicator of the entanglement of the system is suggested. The results beacon the important roles played by both the atomic motion parameters in the evolution of entanglement, entropy squeezing and marginal atomic Wehrl entropy. Using special values of the photon number of transition and atomic motion parameter, the entanglement phenomena of sudden death and long living entanglenment can be appeared. The results show that there is atomic motion monotonic harmonization atomic Wehrl entropy (WE). It is illustrated that the amount of the above-mentioned phenomena can be tuned by controlling the evolved parameters appropriately.

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