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RSS FeedsEntropy, Vol. 24, Pages 1114: Quantum Teleportation and Dense Coding in Multiple Bosonic Reservoirs (Entropy)

 
 

12 august 2022 16:37:44

 
Entropy, Vol. 24, Pages 1114: Quantum Teleportation and Dense Coding in Multiple Bosonic Reservoirs (Entropy)
 


The effect of a reservoir on quantum communication depends on its spectral density. The efficiency of quantum teleportation and dense coding is explored when each one of the channel qubits is coupled simultaneously to multiple bosonic reservoirs. It is shown that the non-Markovianity triggered by increasing the reservoir number can induce revivals of quantum advantages of the two protocols after their disappearance. However, the backflow of information to the system that signifies non-Markovianity does not always induce immediate revivals of the quantum advantages. There may be a delayed effect for some initial states, and only as the backflow of information accumulates to a certain extent can the revivals of quantum advantages be triggered.


 
119 viewsCategory: Informatics, Physics
 
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