Results 31 to 40 of about 1,088,601 (319)

The TDDFT Excitation Energies of the BODIPYs; The DFT and TDDFT Challenge Continues

open access: yesMolecules, 2021
The derivatives of 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) are pivotal ingredients for a large number of functional, stimuli-responsive materials and therapeutic molecules based on their photophysical properties, and there is a urgent need to
Adrien Schlachter   +6 more
doaj   +1 more source

Entropy regularized reinforcement learning using large deviation theory

open access: yesPhysical Review Research, 2023
Reinforcement learning (RL) is an important field of research in machine learning that is increasingly being applied to complex optimization problems in physics. In parallel, concepts from physics have contributed to important advances in RL with developments such as entropy-regularized RL.
Argenis Arriojas   +3 more
openaire   +4 more sources

Duality between relaxation and first passage in reversible Markov dynamics: rugged energy landscapes disentangled

open access: yesNew Journal of Physics, 2018
Relaxation and first passage processes are the pillars of kinetics in condensed matter, polymeric and single-molecule systems. Yet, an explicit connection between relaxation and first passage time-scales so far remained elusive.
David Hartich, Aljaž Godec
doaj   +1 more source

SMEFT deviations

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
This work is based on a bottom-up approach to the standard-model effective field theory (SMEFT), resulting in an equiprobable space of Wilson coefficients.
Federico Camponovo, Giampiero Passarino
doaj   +1 more source

http://www.aimspress.com/article/10.3934/Math.2017.2.336/fulltext.html

open access: yesAIMS Mathematics, 2017
In this work we establish a Freidlin-Wentzell type large deviation principle for stochastic fractional integrodifferential equations by using the weak convergence approach.
Murugan Suvinthra   +2 more
doaj   +1 more source

Gradient and GENERIC Systems in the Space of Fluxes, Applied to Reacting Particle Systems

open access: yesEntropy, 2018
In a previous work we devised a framework to derive generalised gradient systems for an evolution equation from the large deviations of an underlying microscopic system, in the spirit of the Onsager–Machlup relations.
D. R. Michiel Renger
doaj   +1 more source

Local limit theory and large deviations for supercritical Branching processes

open access: yes, 2004
In this paper we study several aspects of the growth of a supercritical Galton-Watson process {Z_n:n\ge1}, and bring out some criticality phenomena determined by the Schroder constant.
Ney, Peter E., Vidyashankar, Anand N.
core   +1 more source

Anisotropy beta functions [PDF]

open access: yes, 1995
The flow of couplings under anisotropic scaling of momenta is computed in $\phi^3$ theory in 6 dimensions. It is shown that the coupling decreases as momenta of two of the particles become large, keeping the third momentum fixed, but at a slower rate ...
D. G. Robertson   +5 more
core   +2 more sources

An introduction to large deviations with applications in physics

open access: yesSciPost Physics Lecture Notes
These notes are based on the lectures that one of us (HT) gave at the Summer School on the "Theory of Large Deviations and Applications," held in July 2024 at Les Houches in France.
Ivan N. Burenev, Daniël W. H. Cloete, Vansh Kharbanda, Hugo Touchette
doaj   +1 more source

Semi-empirical parameterization of HI/p L-shell X-ray production cross section ratios in Bi for Heavy Ion PIXE

open access: yesScientific Reports, 2023
Quantitative analysis of materials from Heavy Ion PIXE spectra remains impeded by the lack of reliable X-ray production cross section (XPCS) data. Although efforts at experimental Heavy Ion induced XPCS measurements still continue, Multiple Ionisation ...
M. C. Masekane   +4 more
doaj   +1 more source

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