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Almost minimum error discrimination of N-ary weak coherent states by Jaynes-Cummings Hamiltonian dynamics

Title
Almost minimum error discrimination of N-ary weak coherent states by Jaynes-Cummings Hamiltonian dynamics
Author
권영헌
Keywords
Quantum information; Quantum mechanics
Issue Date
2019-12
Publisher
NATURE PUBLISHING GROUP
Citation
SCIENTIFIC REPORTS, v. 9, Article no. 19664
Abstract
Quantum state discrimination of coherent states has been one of important problems in quantum information processing. Recently, R. Han et al. showed that minimum error discrimination of two coherent states can be nearly done by using Jaynes-Cummings Hamiltonian. In this paper, based on the result of R. Han et al., we propose the methods where minimum error discrimination of more than two weak coherent states can be nearly performed. Specially, we construct models which can do almost minimum error discrimination of three and four coherent states. Our result can be applied to quantum information processing of various coherent states.
URI
https://www.nature.com/articles/s41598-019-55589-7https://repository.hanyang.ac.kr/handle/20.500.11754/122217
ISSN
2045-2322
DOI
10.1038/s41598-019-55589-7
Appears in Collections:
COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > APPLIED PHYSICS(응용물리학과) > Articles
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