Results 81 to 90 of about 18,586 (189)

Quantum decoherence in axion models of inflation [PDF]

open access: yes
openCosmic inflation predicts the production of quantum fluctuations that seed all the structures present in the universe today. However, these structures (such as Cosmic Microwave Background anisotropies or the large-scale distribution of galaxies) are ...
KHETSURIANI, SHOTA
core  

Dynamics of decoherence in a noisy driven environment

open access: yesScientific Reports
We analyze the decoherence dynamics of a central spin coupled to a spin chain with a time-dependent noisy magnetic field, focusing on how noise influences the system’s decoherence.
R. Jafari   +3 more
doaj   +1 more source

Entropy production in open quantum systems: exactly solvable qubit models

open access: yesCondensed Matter Physics, 2012
We present analytical results for the time-dependent information entropy in exactly solvable two-state (qubit) models. The first model describes dephasing (decoherence) in a qubit coupled to a bath of harmonic oscillators. The entropy production for this
V.G. Morozov, G. Röpke
doaj   +1 more source

Quantum Dynamics Simulations of Polariton Transport in a Bloch Surface Wave Cavity

open access: yesNanophotonics, Volume 15, Issue 12, 25 June 2026.
Polariton Transport Quantum Dynamics for molecules (purple dots) collectively coupled to a Bloch Surface Wave Cavity. Lower panels show the polariton dispersion relation. ABSTRACT Coupling excitons to quantized cavity photonic modes can significantly enhance the spatial and temporal range of excitonic transport.
Santanu Poddar, Pengfei Huo
wiley   +1 more source

Decoherence-enabled unconditional strongly sub-Poissonian squeezing

open access: yesPhysical Review Research
It is generally accepted that the role of quantum decoherence is to spoil the quantum superpositions and to yield the emergence of the classical behaviors from quantum mechanics.
Qing Xu   +4 more
doaj   +1 more source

Verification of the quantum nonequilibrium work relation in the presence of decoherence

open access: yesNew Journal of Physics, 2018
Although nonequilibrium work and fluctuation relations have been studied in detail within classical statistical physics, extending these results to open quantum systems has proven to be conceptually difficult. For systems that undergo decoherence but not
Andrew Smith   +8 more
doaj   +1 more source

Design Principles for Next Generation of Small Organic Molecules for Photodynamics Therapy Revealed by Nonadiabatic Molecular Dynamics

open access: yesChemistry – A European Journal, Volume 32, Issue 24, 23 June 2026.
Molecular design reshapes the landscape of excited‐state relaxation. Nonadiabatic dynamics reveal how electronic structure guides population flow between competing pathways beyond static energetic arguments. ABSTRACT Nitrobenzochalcogenadiazole derivatives are emerging candidates for photodynamic therapy (PDT), yet the precise mechanisms governing ...
Vinícius N. da Rocha   +2 more
wiley   +1 more source

On the problem of emergence of classical space-time: The quantum-mechanical approach [PDF]

open access: yes, 2003
The classical space-time structure is derived from the structure of an abstract infinite dimensional separable Hilbert space S. For this S is first realized as a Hilbert space H* of functions of abstract parameters.
Kryukov, Alexey
core  

Quantum games with decoherence

open access: yes, 2004
© 2005 IOP Publishing LtdA protocol for considering decoherence in quantum games is presented. Results for two-player, two-strategy quantum games subject to decoherence are derived and some specific examples are given.
Flitney, A.   +3 more
core   +1 more source

Quantum contextuality of a single neutrino under interactions with matter

open access: yesNew Journal of Physics, 2018
We study contextuality of the three neutrinos oscillations using the Klyachko–Can–Binicioglu–Shumovsky 5-observable test. We show how the interaction between neutrinos and normal matter affects contextuality—its loss and its possible revivals.
Monika Richter-Laskowska   +2 more
doaj   +1 more source

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