Measurement-based entanglement purification for entangled coherent states

2021 ◽  
Vol 17 (2) ◽  
Author(s):  
Pei-Shun Yan ◽  
Lan Zhou ◽  
Wei Zhong ◽  
Yu-Bo Sheng
Keyword(s):  
Coherent States ◽  
Entanglement Purification ◽  
Entangled Coherent States

scholarly journals Purification of entangled coherent states

2002 ◽  
Vol 2 (3) ◽  
pp. 208-221
Author(s):  
H. Jeong ◽  
M.S. Kim
Keyword(s):  
Decay Time ◽  
Coherent States ◽  
Nonlinear Interactions ◽  
Mixed States ◽  
Entanglement Purification ◽  
Beam Splitters ◽  
Purification Scheme ◽  
Entangled Coherent States

We suggest an entanglement purification scheme for mixed entangled coherent states using 50-50 beam splitters and photodetectors. This scheme is directly applicable for mixed entangled coherent states of the Werner type, and can be useful for general mixed states using additional nonlinear interactions. We apply our scheme to entangled coherent states decohered in a vacuum environment and find the decay time until which they can be purified.

scholarly journals Bipartite quantum channels using multipartite cluster-type entangled coherent states

2010 ◽  
Vol 81 (4) ◽  
Author(s):  
P. P. Munhoz ◽  
J. A. Roversi ◽  
A. Vidiella-Barranco ◽  
F. L. Semião
Keyword(s):  
Coherent States ◽  
Quantum Channels ◽  
Cluster Type ◽  
Entangled Coherent States

scholarly journals Entangled coherent states under dissipation

2010 ◽  
Vol 283 (19) ◽  
pp. 3825-3829 ◽  
Author(s):  
F. Lastra ◽  
G. Romero ◽  
C.E. López ◽  
N. Zagury ◽  
J.C. Retamal
Keyword(s):  
Coherent States ◽  
Entangled Coherent States

Generation of cluster-type entangled coherent states using weak nonlinearities

2011 ◽  
Vol 11 (1&2) ◽  
pp. 124-141
Author(s):  
Nguyen B. An ◽  
Kisik Kim ◽  
Jaewan Kim
Keyword(s):  
Coherent States ◽  
Single Photon ◽  
Optical Devices ◽  
Phase Shifters ◽  
Intense Laser ◽  
Laser Beams ◽  
Beam Splitters ◽  
Photo Detectors ◽  
Cluster Type ◽  
Entangled Coherent States

We propose a scheme to generate a recently introduced type of entangled coherent states using realistic weak cross-Kerr nonlinearities and intense laser beams. An intense laser can be filtered to make a faint one to be used for production of a single photon which is necessary in our scheme. The optical devices used are conventional ones such as interferometer, mirrors, beam-splitters, phase-shifters and photo-detectors. We also provide a detailed analysis on the effects of possible imperfections and decoherence showing that our scheme is robust against such effects.

Entangled Coherent States with Variable Weighting

1993 ◽  
Vol 40 (10) ◽  
pp. 1923-1937 ◽  
Author(s):  
Bruce Wielinga ◽  
Barry C. Sanders
Keyword(s):  
Coherent States ◽  
Variable Weighting ◽  
Entangled Coherent States
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