典型文献
Measurement-based entanglement purification for entangled coherent states
文献摘要:
The entangled coherent states(ECSs)have been widely used to realize quantum information processing tasks.However,the ECSs may suffer from photon loss and decoherence due to the inherent noise in quantum channel,which may degrade the fidelity of ECSs.To overcome these obstacles,we present a measurement-based entanglement purification protocol(MBEPP)for ECSs to distill some high-quality ECSs from a large number of low-quality copies.We first show the principle of this MBEPP without considering the photon loss.After that,we prove that this MBEPP is feasible to correct the error resulted from the photon loss.Additionally,this MBEPP only requires to operate the Bell state measurement without performing local two-qubit gates on the noisy pairs and the purified high-quality ECSs can be preserved for other applications.This MBEPP may have application potential in the implementation of long-distance quantum communication.
文献关键词:
中图分类号:
作者姓名:
Pei-Shun Yan;Lan Zhou;Wei Zhong;Yu-Bo Sheng
作者机构:
Institute of Quantum Information and Technology,Nanjing University of Posts and Telecommunications,Nanjing 210003,China;Institute of Signal Processing Transmission,Nanjing University of Posts and Telecommunications,Nanjing 210003,China;Key Lab of Broadband Wireless Communication and Sensor Network Technology,Ministry of Education,Nanjing University of Posts and Telecommunications,Nanjing 210003,China;School of Science,Nanjing University of Posts and Telecommunications,Nanjing 210003,China
文献出处:
引用格式:
[1]Pei-Shun Yan;Lan Zhou;Wei Zhong;Yu-Bo Sheng-.Measurement-based entanglement purification for entangled coherent states)[J].物理学前沿,2022(02):66-76
A类:
ECSs,MBEPP
B类:
Measurement,entanglement,purification,entangled,coherent,states,have,been,widely,used,realize,quantum,information,processing,tasks,However,may,suffer,from,photon,loss,decoherence,due,inherent,noise,channel,which,degrade,fidelity,To,overcome,these,obstacles,present,measurement,protocol,distill,some,high,quality,large,number,low,copies,We,first,show,principle,this,without,considering,After,that,prove,feasible,correct,error,resulted,Additionally,only,requires,operate,Bell,performing,local,two,qubit,gates,noisy,pairs,purified,can,preserved,other,applications,This,potential,implementation,long,distance,communication
AB值:
0.552026
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