ibrabbas7

Prof. Dr. Ibrahim A. Abbas

Professor - Department of Mathematics

Faculty of science

Address: Sohag University, Egypt.

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Publications Which contain the keyword: Wehrl entropy

Dynamics of Wehrl entropy of a degenerate two-photon process with a nonlinear medium

2018-12-06 22:25:50 Keywords Wehrl entropy, Wehrl PD, Kerr medium,
Dynamics of Wehrl entropy of a degenerate two-photon process with a nonlinear medium
This paper describes the dynamics of the Wehrl entropy and Wehrl phase distribution of a degenerate two-photon of a single mode interacting with a two-level system with a nonlinear medium. A general analytic expression for the Husimi _Q_ function is obtained. The influence of various parameters on the Wehrl entropy and Wehrl phase distribution are explored. It is shown that ... Read more

WEHRL ENTROPY OF A MIXED STATE THREE-LEVEL ATOM INTERACTING WITH A CAVITY FIELD

2018-12-07 14:59:15 Keywords a Cavity Field, THREE-LEVEL ATOM, Wehrl entropy,
WEHRL ENTROPY OF A MIXED STATE THREE-LEVEL ATOM INTERACTING WITH A CAVITY FIELD
In this paper, the Wehrl entropy approach is discussed and compared with the quantum entanglement using a mixed-state three-level atom interacting with a cavity field. In the pure state case, the behavior of the atomic Wehrl entropy shows the same behavior of the entanglement due to the von-Neumann entropy, while the mixed state case gives the total correlation due to ... Read more

WEHRL ENTROPY AND ENTANGLEMENT OF A TIME-DEPENDENT TWO-LEVEL TRAPPED ION INTERACTING WITH A LASER FIELD

2018-12-13 14:17:33 Keywords Wehrl entropy, Entanglement, A TIME-DEPENDEN,
WEHRL ENTROPY AND ENTANGLEMENT OF A TIME-DEPENDENT TWO-LEVEL TRAPPED ION INTERACTING WITH A LASER FIELD
The time evolution of the atomic Wehrl entropy and long-lived entanglement generation using a single trapped ion interacting with a laser field are analyzed. Starting from the Heisenberg equation of motion, an exact solution of the system is obtained by indicating that there are some interesting features when a time-dependent modulating function is considered. We demonstrate that the long-living quantum ... Read more

Entanglement in the Bimodal Jaynes–Cummings Model with the Two-Mode Squeezed Vacuum State

2018-12-13 14:39:12 Keywords Jaynes, Cummings model, Atomic inversion, Two-mode squeezed vacuum state, Wehrl entropy, Linear Entropy,
Entanglement in the Bimodal Jaynes–Cummings Model with the Two-Mode Squeezed Vacuum State
In this paper, we study the interaction between the two-level atom and a bimodal cavity field, namely, two-mode Jaynes–Cummings model when the atom and the modes are initially in the atomic superposition state and two-mode squeezed vacuum state, respectively. For this system we investigate the atomic inversion, linear entropy and atomic Wehrl entropy. We show that there is a connection ... Read more

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