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Helstrom Bound for Squeezed Coherent States in Binary Communication [PDF]

open access: yesEntropy, 2022
In quantum information processing, using a receiver device to differentiate between two non-orthogonal states leads to a quantum error probability. The minimum possible error is known as the Helstrom bound. In this work, we study the conditions for state
Evaldo M. F. Curado   +3 more
doaj   +2 more sources

Common Coherence Witnesses and Common Coherent States. [PDF]

open access: yesEntropy (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.
europepmc   +7 more sources

Digital Quantum Simulation and Circuit Learning for the Generation of Coherent States [PDF]

open access: yesEntropy, 2022
Coherent states, known as displaced vacuum states, play an important role in quantum information processing, quantum machine learning, and quantum optics.
Ruilin Liu   +5 more
doaj   +2 more sources

On Geometry of p-Adic Coherent States and Mutually Unbiased Bases [PDF]

open access: yesEntropy, 2023
This paper considers coherent states for the representation of Weyl commutation relations over a field of p-adic numbers. A geometric object, a lattice in vector space over a field of p-adic numbers, corresponds to the family of coherent states.
Evgeny Zelenov
doaj   +2 more sources

Binary Communication with Gazeau–Klauder Coherent States [PDF]

open access: yesEntropy, 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 ...
Jerzy Dajka, Jerzy Łuczka
doaj   +2 more sources

Coherent state excitations and string-added coherent states in gauge-gravity correspondence

open access: yesNuclear Physics B, 2023
We analyze detailed properties of BPS coherent states and their connection to gravity. We interpret the group integral coherent state as a path integral over auxiliary variables coupled to the elementary letters of the theory. The eigenvalues of coherent
Hai Lin
doaj   +1 more source

Bayesian experimental design and parameter estimation for ultrafast spin dynamics

open access: yesMachine Learning: Science and Technology, 2023
Advanced experimental measurements are crucial for driving theoretical developments and unveiling novel phenomena in condensed matter and materials physics, which often suffer from the scarcity of large-scale facility resources, such as x-ray or neutron ...
Zhantao Chen   +7 more
doaj   +1 more source

Entangled Coherent States in Teleportation

open access: yesEast European Journal of Physics, 2022
In the present paper, we will review the methods to produce superposition of entangled coherent state using polarizing beam splitter and Kerr non linearity.
Shivani A. Kumar   +2 more
doaj   +1 more source

Quantifying the Coherence between Coherent States [PDF]

open access: yesPhysical Review Letters, 2017
8 pages, 2 ...
Tan, Kok Chuan   +3 more
openaire   +3 more sources

Few-femtosecond resolved imaging of laser-driven nanoplasma expansion

open access: yesNew Journal of Physics, 2022
The free expansion of a planar plasma surface is a fundamental non-equilibrium process relevant for various fields but as-yet experimentally still difficult to capture.
C Peltz   +25 more
doaj   +1 more source

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