S. Abdel-Khalek, K. Berrada, A.-S. F. Obada, M. R. B. Wahiddin, “Entropy squeezing for qubit – field system under decoherence effect”, Kvantovaya Elektronika, 2014, Volume 44, Number 3,Pages <nobr>274

This article is cited in 2 papers

Laser applications and other topics in quantum electronics

Entropy squeezing for qubit – field system under decoherence effect

S. Abdel-Khalek^ab, K. Berrada^ac, A.-S. F. Obada^d, M. R. B. Wahiddin^e

^a The Abdus Salam International Centre for Theoretical Physics, Italy
^b Mathematics Department, Faculty of Science, Taif University, Saudi Arabia
^c Al-Imam Muhammed Ibn Saud Islamic University, College of Science, Department of Physics, Saudi Arabia
^d Mathematics Department, Faculty of Science, Al-Azhar University, Egypt
^e Department of Computer Science, International Islamic University of Malaysia, Malaysia

Abstract: We study in detail the dynamics of field entropy squeezing (FES) for a qubit – field system whose dynamics is described by the phase-damped model. The results of calculations show that the initial state and decoherence play a crucial role in the evolution of FES. During the temporal evolution of the system under decoherence effect, an interesting monotonic relation between FES, Wehrl entropy (WE) and negativity is observed.

Keywords: qubit – field system, decoherence, field entropy squeezing.

PACS: 03.65.Yz, 03.67.-a

Received: 21.09.2013