Results 41 to 50 of about 199,986 (309)

Sequential state discrimination of coherent states [PDF]

open access: yesScientific Reports, 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, Min, Kwon, Younghun
openaire   +2 more sources

Quantum Fluctuations in Vacuum Energy: Cosmic Inflation as a Dynamical Phase Transition

open access: yesUniverse, 2022
A variety of models of inflation in the early Universe have been proposed and applied to describe successfully the origin of all possible structures in the Universe.
Masahiro Morikawa
doaj   +1 more source

Maximally coherent states

open access: yesQuantum Information and Computation, 2015
The relative entropy measure quantifying coherence, a key property of quantum system, is proposed recently. In this note, we firstly investigate structural characterization of maximally coherent states with respect to the relative entropy measure. It is shown that mixed maximally coherent states do not exist and every pure maximally coherent state has ...
Zhaofang Bai, Shuan-ping Du
openaire   +2 more sources

Characterizing Quantum Effects in Optically Induced Nanowire Self-Oscillations: Coherent Properties

open access: yesPhotonics, 2021
Mechanical properties of metallic-nanowire self-oscillations are investigated through a coherent-state analysis. We focus on elucidating the time behavior of quantum energy in such oscillations, in addition to the analysis of fluctuations, evolution of ...
Jeong Ryeol Choi
doaj   +1 more source

Number state filtered coherent states

open access: yesQuantum Information Processing, 2018
Number state filtering in coherent states leads to sub-Poissonian photon statistics. These states are more suitable for phase estimation when compared with the coherent states. Nonclassicality of these states is quantified in terms of the negativity of the Wigner function and the entanglement potential.
Nilakantha Meher, S. Sivakumar
openaire   +2 more sources

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

Coherent state of the Dirac oscillator [PDF]

open access: yes, 1996
A coherent state of the Dirac oscillator in (1 + 1) dimensions is constructed. This is a relativistic extension of Schrödinger's coherent state of the nonrelativistic harmonic oscillator.
F. M. Toyama, Y. Nogami
core   +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

A Comparison of State-Based Modelling Tools for Model Validation [PDF]

open access: yes, 2008
In model-based testing, one of the biggest decisions taken before modelling is the modelling language and the model analysis tool to be used to model the system under investigation. UML, Alloy and Z are examples of popular state-based modelling languages.
Aydal, Emine   +7 more
core   +1 more source

COHERENT STATES FOR UNUSUAL POTENTIALS [PDF]

open access: yesModern Physics Letters A, 2001
The program to construct minimum-uncertainty coherent states for general potentials works transparently with solvable analytic potentials. However, when an analytic potential is not completely solvable, like for a double-well or the linear (gravitational) potential, there can be a conundrum. Motivated by supersymmetry concepts in higher dimensions, we
openaire   +2 more sources

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