Results 11 to 20 of about 2,564,507 (290)

Acknowledgement to Reviewers of Quantum Beam Science in 2019

open access: yesQuantum Beam Science, 2020
The editorial team greatly appreciates the reviewers who have dedicated their considerable time and expertise to the journal’s rigorous editorial process over the past 12 months, regardless of whether the papers are finally published or not [...]
Quantum Beam Science Editorial Office
doaj   +1 more source

Quantum Dissipation and Quantum Groups [PDF]

open access: yesAnnals of Physics, 1995
We discuss the r le of quantum deformation of Weyl-Heisenberg algebra in dissipative systems and finite temperature systems. We express the time evolution generator of the damped harmonic oscillator and the generator of thermal Bogolubov transformations in terms of operators of the quantum Weyl-Heisenberg algebra. The quantum parameter acts as a label
Iorio, Alfredo, Vitiello, Giuseppe
openaire   +3 more sources

A quantum–quantum Metropolis algorithm [PDF]

open access: yesProceedings of the National Academy of Sciences, 2012
The classical Metropolis sampling method is a cornerstone of many statistical modeling applications that range from physics, chemistry, and biology to economics. This method is particularly suitable for sampling the thermal distributions of classical systems. The challenge of extending this method to the simulation of arbitrary quantum systems is that,
Yung, Man-Hong, Aspuru-Guzik, Alan
openaire   +4 more sources

Quantum chaos in quantum wells [PDF]

open access: yesPhysica D: Nonlinear Phenomena, 1999
25 pages, 15 figures, accepted for publication in Physica ...
Narimanov, E. E., Stone, A. Douglas
openaire   +3 more sources

Quantum Oscillations without Quantum Coherence [PDF]

open access: yesPhysical Review Letters, 2003
We study numerically the damping of quantum oscillations and the increase of entropy with time in model spin systems decohered by a spin bath. In some experimentally relevant cases, the oscillations of considerable amplitude can persist long after the entropy has saturated near its maximum, i.e.
Dobrovitski, VV   +3 more
openaire   +3 more sources

Quantum channels in quantum gravity [PDF]

open access: yesInternational Journal of Modern Physics D, 2014
The black hole final state proposal implements manifest unitarity in the process of black hole formation and evaporation in quantum gravity, by postulating a unique final state boundary condition at the singularity. We argue that this proposal can be embedded in the gauge/gravity context by invoking a path integral formalism inspired by the Schwinger ...
Rangamani, Mukund, Rota, Massimilliano
openaire   +4 more sources

Spectral Emission Dependence of Tin‐Vacancy Centers in Diamond from Thermal Processing and Chemical Functionalization

open access: yesAdvanced Photonics Research, 2022
A systematic photoluminescence (PL) investigation of the spectral emission properties of individual optical defects fabricated in diamond upon ion implantation and annealing is reported.
Emilio Corte   +11 more
doaj   +1 more source

Teaching and Learning Optics in High School: From Fermat to Feynman

open access: yesEducation Sciences, 2023
In this article, we analyze the basis of a proposal that allows teaching the notions of reflection, refraction, interference and diffraction from a unified perspective, using Fermat’s variational principle, recovered by Richard Feynman in his formulation
Maria Rita Otero, Marcelo Fabian Arlego
doaj   +1 more source

Quantum-Sized Zinc Oxide Nanoparticles Synthesised within Mesoporous Silica (SBA-11) by Humid Thermal Decomposition of Zinc Acetate

open access: yesCrystals, 2020
A modified facile method is presented to synthesise quantum-sized zinc oxide nanoparticles within the pores of a mesoporous silica host (SBA-11). This method eliminates the 3 h alcohol reflux and the basic solution reaction steps of zinc acetate.
Tariq Aqeel, Heather F. Greer
doaj   +1 more source

Some q-Fractional Estimates of Trapezoid like Inequalities Involving Raina’s Function

open access: yesFractal and Fractional, 2022
In this paper, we derive two new identities involving q-Riemann-Liouville fractional integrals. Using these identities, as auxiliary results, we derive some new q-fractional estimates of trapezoidal-like inequalities, essentially using the class of ...
Kamsing Nonlaopon   +4 more
doaj   +1 more source

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