The European Physical Journal D

, Volume 62, Issue 2, pp 245–253 | Cite as

Entangled entanglement in Raman lasers

Regular Article

Abstract

We show that entangled entanglement can be obtained from a multimode Raman laser. In this system, all lasing modes constitute a quantum-beat. Equivalently, one collective mode is operated well above threshold and exhibits the sub-Poissonian statistics, while other orthonormal collective modes are excluded from the interacting system and stay in vacuum states. This determines entanglement between any two sub-collections, in each of which exists entanglement between any two sub-sub-collections, and so on, if present. This scheme is accessible based on the recent experimental progress in Raman lasers.

Keywords

Rabi Frequency Collective Mode Raman Laser Coherent Population Trapping Cooperativity Parameter 

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  1. 1.Department of PhysicsHuazhong Normal UniversityWuhanP.R. China

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