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Quantum Information Processing

Super-quantum correlation for SU(2) invariant state in system

  • 01-04-2018
Published in:
Authors
Lin-Song Li
Yuan-Hong Tao
Hua Nan
Hui Xu
Published in
Quantum Information Processing | Issue 4/2018

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Abstract

We analytically evaluate the weak one-way deficit and super-quantum discord for a system composed of spin-3/2 and spin-1/2 subsystems possessing SU(2) symmetry. We also make a comparative study of the relationships among the quantum discord, one-way deficit, weak one-way deficit, and super-quantum discord for the SU(2) invariant state. It is shown that super-quantum discord via weak measurement is greater than that via von Neumann measurement. But weak one-way deficit is less than the one-way deficit. As a result, weak measurement do not always reveal more quantumness.

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previous article Capacity of a quantum memory channel correlated by matrix product states
next article Entropic uncertainty relations in the Heisenberg XXZ model and its controlling via filtering operations
Title
Super-quantum correlation for SU(2) invariant state in system
Authors
Lin-Song Li
Yuan-Hong Tao
Hua Nan
Hui Xu
Publication date
01-04-2018
Publisher
Springer US
Published in
Quantum Information Processing / Issue 4/2018
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-017-1789-2
This content is only visible if you are logged in and have the appropriate permissions.

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