Results 1 to 10 of about 5,285,152 (201)

Helstrom Bound for Squeezed Coherent States in Binary Communication

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   +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

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

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

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

BPS coherent states and localization

open access: yesJournal of High Energy Physics, 2022
We introduce coherent states averaged over a gauge group action to study correlators of half BPS states in N $$ \mathcal{N} $$ = 4 SYM theory. The overlaps of these averaged coherent states are a generating function of correlators and can be written in ...
David Berenstein, Shannon Wang
doaj   +1 more source

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

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   +1 more source

Binary Communication with Gazeau–Klauder Coherent States

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   +1 more source

INTERFERENCE OF MULTI-MODE WEAK COHERENT STATES FOR TWIN-FIELD QUANTUM COMMUNICATION APPLICATIONS [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2019
Subject of Research. We present the results of analytical research and experimental implementation of quantum key distribution protocol based on multi-mode weak coherent states with untrusted detection node. Such states are based on interference of phase-
Vladimir V. Chistiakov   +3 more
doaj   +1 more source

Circuit complexity for coherent states

open access: yesJournal of High Energy Physics, 2018
We examine the circuit complexity of coherent states in a free scalar field theory, applying Nielsen’s geometric approach as in [1]. The complexity of the coherent states have the same UV divergences as the vacuum state complexity and so we consider the ...
Minyong Guo   +3 more
doaj   +1 more source

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