Improving entanglement of even entangled coherent states via superposition of number-conserving operations

A scheme for improving entanglement is proposed by repeatedly performing number-conserving generalized superposition of products (GSP) operation, i.e., saa†+ta†amwith s2+t2=1,on each modes of even entangled coherent state (EECS). Both Einstein–Podolsky–Rosen (EPR) correlation and concurrence are use...

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Bibliographic Details
Main Authors: Luping Zhang, Fang Jia, Huan Zhang, Wei Ye, Ying Xia, Liyun Hu, Jiehui Huang
Format: Article
Language:English
Published: Elsevier 2022-04-01
Series:Results in Physics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2211379722001073