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arXiv:1703.05629 · Communications in Theoretical Physics

Entanglement Concentration with Different Measurement in a 3-Mode Optomechanical System

Zhe Li

Published Jul 1, 2017• 4 citations
arXivHTMLPDF

Abstract

Abstract In this work, we perform a series of phonon counting measurement with different methods in a 3-mode optomechanical system, and we compare the difference of the entanglement after measurement. In this article we focus on the three cases: prefect measurement, imperfect measurement and on-off measurement. We find that whatever measurement you take, the entanglement will increase. The size of entanglement enhancement is the largest in the perfect measurement, second in the imperfect measurement, and it is not obvious in the on-off measurement. We are sure that the more precise measurement information, the larger entanglement concentration.

DOI
10.1088/0253-6102/68/1/57

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