Results 31 to 40 of about 436,858 (367)

Path integral control of a stochastic multi-risk SIR pandemic model

open access: yesTheory in biosciences, 2023
In this paper a Feynman-type path integral control approach is used for a recursive formulation of a health objective function subject to a fatigue dynamics, a forward-looking stochastic multi-risk susceptible–infective–recovered (SIR) model with risk ...
Paramahansa Pramanik
semanticscholar   +1 more source

A new three-dimensional J-integral formulation for arbitrary load history and finite deformation

open access: yesNihon Kikai Gakkai ronbunshu, 2018
In this paper, a new formulation of three-dimensional J-integral for the evaluation of elastic-plastic fracture problem is presented. It is known that the J-integral represents the energy release rate per unit crack extension.
Koichiro ARAI   +2 more
doaj   +1 more source

Fully Symmetric Relativistic Quantum Mechanics and Its Physical Implications

open access: yesMathematics, 2021
A new formulation of relativistic quantum mechanics is presented and applied to a free, massive, and spin-zero elementary particle in the Minkowski spacetime. The reformulation requires that time and space, as well as the timelike and spacelike intervals,
Bao D. Tran, Zdzislaw E. Musielak
doaj   +1 more source

A null-scattering path integral formulation of light transport

open access: yesACM Transactions on Graphics, 2019
Unbiased rendering of general, heterogeneous participating media currently requires using null-collision approaches for estimating transmittance and generating free-flight distances.
Bailey Miller   +2 more
semanticscholar   +1 more source

Path Integral Formulation of Stochastic Optimal Control with Generalized Costs [PDF]

open access: yes, 2014
Path integral control solves a class of stochastic optimal control problems with a Monte Carlo (MC) method for an associated Hamilton-Jacobi-Bellman (HJB) equation.
Insoon Yang   +3 more
semanticscholar   +1 more source

Quantum dynamics using path integral coarse-graining. [PDF]

open access: yesJournal of Chemical Physics, 2022
The vibrational spectra of condensed and gas-phase systems are influenced by thequantum-mechanical behavior of light nuclei. Full-dimensional simulations of approximate quantum dynamics are possible thanks to the imaginary time path-integral (PI ...
Félix Musil   +4 more
semanticscholar   +1 more source

A new formulation of J-integral range ΔJ using three-dimensional equivalent domain integral for finite deformation elastic-plastic problem

open access: yesNihon Kikai Gakkai ronbunshu, 2018
In this paper, a new formulation for computing ΔJ using the three-dimensional equivalent domain integral method for finite deformation elastic-plastic problem is presented.
Koichiro ARAI   +2 more
doaj   +1 more source

Cost of holographic path integrals

open access: yesSciPost Physics, 2023
We consider proposals for the cost of holographic path integrals. Gravitational path integrals within finite radial cutoff surfaces have a precise map to path integrals in $T\overline{T}$ deformed holographic CFTs. In Nielsen's geometric formulation cost
Ammanamanchi Ramesh Chandra, Jan de Boer, Mario Flory, Michal P. Heller, Sergio Hörtner, Andrew Rolph
doaj   +1 more source

On exact-WKB analysis, resurgent structure, and quantization conditions

open access: yesJournal of High Energy Physics, 2020
There are two well-known approaches to studying nonperturbative aspects of quantum mechanical systems: saddle point analysis of the partition functions in Euclidean path integral formulation and the exact-WKB analysis based on the wave functions in the ...
Naohisa Sueishi   +3 more
doaj   +1 more source

Mandelstam-Leibbrandt prescription within path integral formulation [PDF]

open access: goldProceedings of LIGHT CONE 2008 Relativistic Nuclear and Particle Physics — PoS(LC2008), 2009
Jerzy A. Przeszowski
openaire   +2 more sources

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