Some Features on Entropy Squeezing for Two-Level System with a New Nonlinear Coherent State

• 作者: Salama I. Ali Sayed Abdel-Khalek
• 来源期刊: 量子信息科学期刊(英文)
• 学科: 医学
• 关键词: ENTROPY SQUEEZING Kerr-Like MEDIUM Nonlinear COHERENT State
• 年，卷（期）: 2014,（1）
• 页码范围: 71-81
• 页数: 11页
• 分类号: R73

摘要

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.