Quantum Mappings and Characterization of Entangled Quantum States
- Authors: Filippov S.N.1
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Affiliations:
- Moscow Institute of Physics and Technology (State University)
- Issue: Vol 241, No 2 (2019)
- Pages: 210-236
- Section: Article
- URL: https://journals.rcsi.science/1072-3374/article/view/242877
- DOI: https://doi.org/10.1007/s10958-019-04418-3
- ID: 242877
Cite item
Abstract
We review quantum mappings used in problems of characterization of entanglement of two-part and multi-particle systems. Together with positive and n-tensorial constant positive mappings, we consider physical dynamical processes that lead to quantum channels that break entanglement, annihilate entanglement, dissociate entanglement of multi-particle states, and prohibit distillation of output states. We introduce a new class of absolutely disentangling channels that provide absolutely separable states at the output, and also characterize a new class of entanglement-imposing channels whose output states are entangled. We present states that are most resistant to loss of entanglement and prove that they may differ from maximally entangled states.
About the authors
S. N. Filippov
Moscow Institute of Physics and Technology (State University)
Author for correspondence.
Email: sergey.filippov@phystech.edu
Russian Federation, Moscow