Results 1 to 10 of about 935 (218)

A new method for the calculation of functional and path integrals [PDF]

open access: yesScientific Reports, 2023
This paper addresses a disconnect between the pivotal role of functional (path) integrals in modern theories, such as quantum mechanics and statistical thermodynamics, and the currently limited ability to perform the actual calculation.
Amos A. Hari, Sefi Givli
doaj   +2 more sources

Path integrals: From quantum mechanics to photonics [PDF]

open access: yesAPL Photonics, 2021
The path integral formulation of quantum mechanics, i.e., the idea that the evolution of a quantum system is determined as a sum over all the possible trajectories that would take the system from the initial to its final state of its dynamical evolution,
Charles W. Robson   +3 more
doaj   +5 more sources

Introduction to path-integral Quantum Field Theory – A toolbox

open access: yesRevista Brasileira de Ensino de Física, 2021
Lecture notes on path-integrals, suitable for an undergraduate course with prerequisites such as: Classical Mechanics, Electromagnetism and Quantum Mechanics.
Roland Koberle
doaj   +1 more source

Quantum Oscillator at Temperature T and the Evolution of a Charged-Particle State in the Electric Field in the Probability Representation of Quantum Mechanics

open access: yesEntropy, 2023
A short review constructing the probability representation of quantum mechanics is given, and examples of the probability distributions describing the states of quantum oscillator at temperature T and the evolution of quantum states of a charged particle
Margarita A. Man’ko   +1 more
doaj   +1 more source

Natural space of the micro-object

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2011
The immutability of classical dynamical laws for the microscopic object in the space which coordinate axes are the transition matrix elements of the corresponding coordinates is proved. It is stated that measurement is a micro-object localization process
Aleksey Yu Samarin
doaj   +3 more sources

Nonperturbative renormalization of quantum thermodynamics from weak to strong couplings

open access: yesPhysical Review Research, 2022
By solving the exact master equation of open quantum systems, we formulate the quantum thermodynamics from weak to strong couplings. The open quantum systems exchange matters, energies, and information with their reservoirs through quantum particle ...
Wei-Ming Huang, Wei-Min Zhang
doaj   +1 more source

Complex time transformations peculiarities for wave function collapse description using quantum path integrals

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2014
A quantum path integral was transformed into the real form using a complex representation of the time. Such procedure gives the possibility to specify measures for the sets of the virtual paths in continual integrals determining amplitudes of quantum ...
Natalia V Meleshko, Alexey Yu Samarin
doaj   +1 more source

Physics Didactic, Affect and Conceptualization

open access: yesReview of Science, Mathematics and ICT Education, 2011
This paper discusses the relation between affects and conceptualization in physics didactics. We present a theoretical framework that has been used in an investigation about basic Quantum Mechanics teaching in the high school.
MARIA RITA OTERO   +1 more
doaj   +1 more source

Unraveling looping efficiency of stochastic Cosserat polymers

open access: yesPhysical Review Research, 2022
Understanding looping probabilities, including the particular case of ring closure or cyclization, of fluctuating polymers (e.g., DNA) is important in many applications in molecular biology and chemistry.
Giulio Corazza, Raushan Singh
doaj   +1 more source

A naturally regularized path integral formalism

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
A minimal uncertainty in position measurement comes into play if, for instance, one incorporates gravitational interaction of photon and electron in the Heisenberg’s Electron Microscope Gedanken Experiment.
Kourosh Nozari   +3 more
doaj   +1 more source

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