scholarly journals High success standard quantum teleportation using entangled coherent state and two-level atoms in cavities

2021 ◽  
Vol 20 (10) ◽  
Author(s):  
Ravi Kamal Pandey ◽  
Ranjana Prakash ◽  
Hari Prakash
Keyword(s):  
Coherent State ◽  
Quantum Teleportation ◽  
Standard Quantum ◽  
Entangled Coherent State

Quantum teleportation of a tripartite entangled coherent state

2021 ◽  
Author(s):  
Shivani A. Kumar
Keyword(s):  
Coherent State ◽  
Quantum Channel ◽  
Quantum Teleportation ◽  
Optical Devices ◽  
Phase Shifters ◽  
Quantum Model ◽  
Beam Splitters ◽  
Entangled Coherent State ◽  
Linear Optical

The present work proposes a scheme to teleport a tripartite coherent state using an unparalleled four-component state as a quantum channel. The scheme involves linear optical devices like beam splitters and phase shifters. It is shown that, even by taking an uncompromising quantum model, almost a complete teleportation can be achieved with an impressive number of photons. It is also shown that the teleportation fails only if zero photons are found in all the three output modes or zero in two output modes and a nonzero even/odd photon in one mode. However, the probability of getting these output modes is almost negligible.

TELEPORTATION OF THE MULTIPARTITE ENTANGLED STATES IN CONTINUOUS VARIABLE

2009 ◽  
Vol 07 (02) ◽  
pp. 505-515
Author(s):  
MIAN QIAO ◽  
YONG SUN ◽  
YUN JIE XIA
Keyword(s):  
Coherent State ◽  
Quantum Teleportation ◽  
Optical Devices ◽  
Continuous Variable ◽  
Phase Shifters ◽  
Entangled States ◽  
Average Fidelity ◽  
Beam Splitters ◽  
Entangled Coherent State ◽  
Photo Detectors

We propose a quantum teleportation scheme for tripartite entangled coherent state (ECS) in continuous variable by adopting disentanglement method. Our scheme is feasible and economical in the sense that we only need linear optical devices such as beam splitters, phase shifters and photo detectors and employ bipartite maximally ECS as quantum channel. We also generalize the tripartite scheme into multipartite case and calculate the minimum average fidelity for the schemes in tripartite and multipartite cases.

Entanglement and nonlocality for a mixture of a pair-coherent state

2003 ◽  
Vol 3 (2) ◽  
pp. 106-115
Author(s):  
S. Mancini ◽  
P. Tombesi
Keyword(s):  
Coherent State ◽  
Quantum Teleportation ◽  
Single Photon ◽  
Continuous Variables ◽  
Bell’S Inequalities ◽  
Nonclassical Properties ◽  
Pair Coherent State ◽  
Photon Loss ◽  
Phase Randomization ◽  
Degree Of Entanglement

We consider a bipartite continuous variables quantum mixture coming from phase randomization of a pair-coherent state. We study the nonclassical properties of such a mixture. In particular, we quantify its degree of entanglement, then we show possible violations of Bell's inequalities. We also consider the use of this mixture in quantum teleportation. Finally, we compare this mixture with that obtained from a pair-coherent state by single photon loss.

scholarly journals Entanglement fidelity of the standard quantum teleportation channel

2013 ◽  
Vol 377 (23-24) ◽  
pp. 1531-1533 ◽  
Author(s):  
Gang Li ◽  
Ming-Yong Ye ◽  
Xiu-Min Lin
Keyword(s):  
Quantum Teleportation ◽  
Standard Quantum

Quantum entanglement of an entangled coherent state: Role of particle losses

2014 ◽  
Vol 23 (3) ◽  
pp. 030310
Author(s):  
Pan Liu ◽  
Xiao-Min Feng ◽  
Guang-Ri Jin
Keyword(s):  
Coherent State ◽  
Quantum Entanglement ◽  
Entangled Coherent State

scholarly journals CLASSICAL TELEPORTATION OF CLASSICAL STATES

2006 ◽  
Vol 06 (02) ◽  
pp. C1-C8 ◽  
Author(s):  
OLIVER COHEN
Keyword(s):  
Quantum Teleportation ◽  
Quantum States ◽  
Standard Quantum ◽  
Classical Information ◽  
Classical Scheme ◽  
Classical States

The standard quantum teleportation scheme is deconstructed, and those aspects of it that appear remarkable and "non-classical" are identified. An alternative teleportation scheme, involving only classical states and classical information, is then formulated, and it is shown that the classical scheme reproduces all of these remarkable aspects, despite the fact that they had seemed non-classical. This leads to a re-examination of quantum teleportation, which suggests that its significance depends on the interpretation of quantum states.

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