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Common Coherence Witnesses and Common Coherent States. [PDF]
Entropy (Basel), 2021 We show the properties and characterization of coherence witnesses. We show methods for constructing coherence witnesses for an arbitrary coherent state. We investigate the problem of finding common coherence witnesses for certain class of states. We show that finitely many different witnesses W1,W2,⋯,Wn can detect some common coherent states if and ...
Wang BH, Ding ZH, Ma Z, Fei SM.
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Sequential state discrimination of coherent states. [PDF]
Sci Rep, 2018 AbstractSequential state discrimination is a strategy for quantum state discrimination of a sender’s quantum states when N receivers are separately located. In this report, we propose optical designs that can perform sequential state discrimination of two coherent states.
Namkung M, Kwon Y.
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Binary Communication with Gazeau-Klauder Coherent States. [PDF]
Entropy (Basel), 2020 We investigate advantages and disadvantages of using Gazeau–Klauder coherent states for optical communication. In this short paper we show that using an alphabet consisting of coherent Gazeau–Klauder states related to a Kerr-type nonlinear oscillator ...
Dajka J, Łuczka J.
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Reduction and coherent states [PDF]
Letters in Mathematical Physics, 2021 33 pages, 4 ...
Jenia Rousseva, Alejandro Uribe
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Groupoids and Coherent States [PDF]
Open Systems & Information Dynamics, 2019 Schwinger’s algebra of selective measurements has a natural interpretation in terms of groupoids. This approach is pushed forward in this paper to show that the theory of coherent states has a natural setting in the framework of groupoids. Thus given a quantum mechanical system with associated Hilbert space determined by a representation of a groupoid,
Fabio Di Cosmo +2 more
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Quantifying the Coherence between Coherent States [PDF]
Physical Review Letters, 2017 8 pages, 2 ...
Tan, Kok Chuan +3 more
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, 2023 Proc. Geom. Sci. Inf. Conf. (Saint-Malo, France, 2023), Lecture Notes Comp. Sci., 14071, Springer, 2023, pp.
Tatyana Barron, Alexander Kazachek
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Coherent states on spheres [PDF]
Journal of Mathematical Physics, 2002 We describe a family of coherent states and an associated resolution of the identity for a quantum particle whose classical configuration space is the d-dimensional sphere Sd. The coherent states are labeled by points in the associated phase space T*(Sd).
Hall, Brian C., Mitchell, Jeffrey J.
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Coherence concurrence for X states [PDF]
Quantum Information Processing, 2020 We study the properties of coherence concurrence and present a physical explanation analogous to the coherence of assistance. We give an optimal pure state decomposition which attains the coherence concurrence for qubit states. We prove the additivity of coherence concurrence under direct sum operations in another way. Using these results, we calculate
Ming-Jing Zhao +4 more
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Single-shot discrimination of coherent states beyond the standard quantum limit
, 2021 The discrimination of coherent states is a key task in optical communication and quantum key distribution protocols. In this work, we use a photon-number-resolving detector, the transition-edge sensor, to discriminate binary-phase-shifted coherent states
Thekkadath, GS +5 more
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