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Entanglement Manipulation Beyond Local Operations and Classical Communication by Chitambar, Eric; de Vicente, Julio I.; Girard, Mark W.; Gour, Gilad is a Physics and Astronomy article available to read on EtoBox.

What is Entanglement Manipulation Beyond Local Operations and Classical Communication about?

When a quantum system is distributed to spatially separated parties, it is natural to consider how the system evolves when the parties perform local quantum operations with classical communication (LOCC). However, the structure of LOCC channels is exceedingly complex, leaving many important physical problems unsolved. In this paper, we consider generalized resource theories of entanglement based on different relaxations to the class of LOCC. The behavior of various entanglement measures is studied under non-entangling channels, as well as the newly introduced classes of dually non-entangling and positive partial transpose (PPT)-preserving channels. In an effort to better understand the nature of LOCC bound entanglement, we study the problem of entanglement distillation in these generalized resource theories. We first show that unlike LOCC, general non-entangling maps can be superactivated, in the sense that two copies of the same non-entangling map can, nevertheless, be entangling. On the single-copy level, we demonstrate that every NPT entangled state can be converted into an LOCC-distillable state using channels that are both dually non-entangling and having a PPT Choi representa

Who reads Entanglement Manipulation Beyond Local Operations and Classical Communication?

Author

Chitambar, Eric; de Vicente, Julio I.; Girard, Mark W.; Gour, Gilad

Publisher

American Institute of Physics; AIP Publishing (ISSN 0022-2488)

Published

2020

Language

EN

Field

Physics and Astronomy (Physical Sciences)