Manipulation of Quantum Communication Channel via Two-Level Atom Interacting with Caving Fields

Abstract:

Base on the dispersive atom-cavity field interaction, the scheme for preparing the entangled coherent state is discussed. An experimentally feasible protocol for realizing entanglement concentration of the entangled coherent states by using a two-level atom interacting with caving fields is proposed. In this protocol, the entanglement between two coherent states, and , with the same amplitude but a phase difference is utilized as the quantum communication channel. The process of the entanglement concentration is implemented by using a two-level atom interacting with caving fields and two-modes orthogonal states measurement. With the present development of cavity quantum electrodynamics (QED) techniques, the scheme can be achieved.

• Periodical: Applied Mechanics and Materials (Volumes 571-572)
• Pages: 469-472
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.571-572.469
• Online since: June 2014
• Authors: Xin Hua Cai*, Jian Jun Nie
• Keywords: Cavity Quantum Electrodynamics, Entangled Coherent States, Entanglement Concentration, Quantum Communication, Two-Level Atom

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