TITLE:
Some Features on Entropy Squeezing for Two-Level System with a New Nonlinear Coherent State
AUTHORS:
Salama I. Ali, Sayed Abdel-Khalek
KEYWORDS:
Entropy Squeezing; Kerr-Like Medium; Nonlinear Coherent State
JOURNAL NAME:
Journal of Quantum Information Science,
Vol.4 No.1,
March
18,
2014
ABSTRACT: Entropy squeezing is an important feature in
performing different tasks in quantum information processing such as quantum
cryptography and superdense coding. These quantum information tasks depend on
finding the states in which squeezing can be created. In this article, a new
feature on entropy squeezing for a two level system with a class of nonlinear
coherent state (NCS) is observed. An interesting
result on the comparison between the coherent state (CS) and NCS is explored. The influence of the Lamb-Dick parameter in both absence and
presence of the Kerr medium is examined. A rich
feature of entropy squeezing in the case of NCS, which is observed to describe the motion of the trapped ion, has been obtained.