Results 21 to 30 of about 577,492 (310)

Quantum correlation entropy [PDF]

open access: yesPhysical Review A, 2020
6 pages.
Joseph Schindler   +2 more
openaire   +2 more sources

Quantum coherence and entanglement of the system of a five-level atom in the presence of nonlinear fields

open access: yesJournal of the European Optical Society-Rapid Publications, 2023
We investigate the atom-field system in the framework of harmonic oscillators based on deformed Heisenberg algebras. We explore the dynamic characteristics of the considered system under the effect of a nonlinear field.
Algarni Mariam   +3 more
doaj   +1 more source

Robust Entangled-Photon Ghost Imaging with Compressive Sensing

open access: yesSensors, 2019
This work experimentally demonstrates that the imaging quality of quantum ghost imaging (GI) with entangled photons can be significantly improved by properly handling the errors caused by the imperfection of optical devices.
Jun Li   +5 more
doaj   +1 more source

Quantum Correlations in de Sitter Space

open access: yesUniverse, 2017
We study quantum correlation of a massive scalar field in a maximally entangled state in de Sitter space. We prepare two observers, one in a global chart and the other in an open chart of de Sitter space.
Jiro Soda   +2 more
doaj   +1 more source

ARE QUANTUM CORRELATIONS GENUINELY QUANTUM? [PDF]

open access: yesInternational Journal of Modern Physics B, 2012
It is shown that the probabilities for the spin singlet can be reproduced through classical resources, with no communication between the distant parties, by using merely shared (pseudo-)randomness. If the parties are conscious beings aware of both the hidden-variables and the random mechanism, then one has a conspiracy.
openaire   +3 more sources

Correlations and How to Interpret Them

open access: yesInformation, 2019
Correlations between observed data are at the heart of all empirical research that strives for establishing lawful regularities. However, there are numerous ways to assess these correlations, and there are numerous ways to make sense of them.
Harald Atmanspacher, Mike Martin
doaj   +1 more source

Building with quantum correlations [PDF]

open access: yesQuantum Information Processing, 2010
`Correlations without correlata' is an influential way of thinking of quantum entanglement as a form primitive correlation which nonetheless maintains locality of quantum theory. A number of arguments have sought to suggest that such a view leads either to internal inconsistency or to conflict with the empirical predictions of quantum mechanics.
Timpson, C, Brown, H
openaire   +2 more sources

Cosmological Spectrum of Two-Point Correlation Function from Vacuum Fluctuation of Stringy Axion Field in De Sitter Space: A Study of the Role of Quantum Entanglement

open access: yesUniverse, 2020
In this work, we study the impact of quantum entanglement on the two-point correlation function and the associated primordial power spectrum of mean square vacuum fluctuation in a bipartite quantum field theoretic system.
Sayantan Choudhury, Sudhakar Panda
doaj   +1 more source

Spatial quantum correlations in multiple scattered light [PDF]

open access: yes, 2005
We predict a new spatial quantum correlation in light propagating through a multiple scattering random medium. The correlation depends on the quantum state of the light illuminating the medium, is infinite range, and dominates over classical mesoscopic ...
A. Lagendijk   +4 more
core   +4 more sources

Two-Color Quantum Correlation between Down-Conversion Beams at 1.5 and 3.3 μm from a Singly Resonant Optical Parametric Oscillator

open access: yesApplied Sciences, 2020
We demonstrated a two-color quantum correlation between the down-conversion beams with a telecommunication wavelength at 1.5 μm and mid-infrared wavelength at 3.3 μm generated by a singly resonant optical parametric oscillator (SRO) operated above the ...
Dandan Nie   +3 more
doaj   +1 more source

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