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Open Quantum Systems Decoherence Entanglement Theory Quantum Correlations

Operations with elements of transferred density matrix via unitary transformations at receiver side

arXiv
Authors: A. I. Zenchuk

Year

2018

Paper ID

22928

Status

Preprint

Abstract Read

~2 min

Abstract Words

92

Citations

N/A

Abstract

Using the tool of unitary transformations of the extended receiver we perform simple operations with the non-diagonal elements of the initial sender's density matrix after their transferring to the receiver. These operations are following: turning some matrix elements to zero, rearranging the matrix elements and preparing their linear combinations with required coefficients. We also propose a protocol for solving a system of linear algebraic equations with a system of two equations as an example. Such operations are numerically simulated on the basis of 42-node spin-1/2 chain with the two-qubit sender and receiver.

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  • Using the tool of unitary transformations of the extended receiver we perform simple operations with the non-diagonal elements of the initial sender's density matrix after...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1812.01408 [2] arXiv https://arxiv.org/abs/1812.01408 [3] Publisher https://arxiv.org/abs/1812.01408

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