Entropy squeezing for qubit – field system under decoherence effect

Journal Article · Fri Mar 28 00:00:00 EDT 2014 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2014V044N03ABEH015318· OSTI ID:22375962

Abdel-Khalek, S; Berrada, K ^[1]; Obada, A-S F ^[2]; Wahiddin, M R ^[3]

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1. The Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, Miramare-Trieste (Italy)
2. Mathematics Department, Faculty of Science, Al-Azher University, Nassr City 11884, Cairo (Egypt)
3. International Islamic University of Malaysia (IIUM), Department of Computer Science, P.O. Box 10, 50728 Kuala Lumpur (Malaysia)

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. (laser applications and other topics in quantum electronics)

• OSTI ID: 22375962
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 44, Issue 3; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ENTROPY
EXCITED STATES
LASERS
QUANTUM ELECTRONICS
QUBITS