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How to solve path integrals in quantum mechanics [PDF]

open access: yesJournal of Mathematical Physics, 1995
A systematic classification of Feynman path integrals in quantum mechanics is presented and a table of solvable path integrals is given which reflects the progress made during the last 15 years, including, of course, the main contributions since the invention of the path integral by Feynman in 1942.
Grosche, Christian, Steiner, Frank
openaire   +4 more sources

Anomalous paths in quantum mechanical path-integrals

open access: yesPhysics Letters B, 2013
We investigate modifications of the discrete-time lattice action, for a quantum mechanical particle in one spatial dimension, that vanish in the na ve continuum limit but which, nevertheless, induce non-trivial effects due to quantum fluctuations. These effects are seen to modify the geometry of the paths contributing to the path-integral describing ...
Grimsmo, Arne L.   +2 more
openaire   +5 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

A path integral for classical dynamics, entanglement, and Jaynes-Cummings model at the quantum-classical divide [PDF]

open access: yes, 2010
The Liouville equation differs from the von Neumann equation 'only' by a characteristic superoperator. We demonstrate this for Hamiltonian dynamics, in general, and for the Jaynes-Cummings model, in particular. -- Employing superspace (instead of Hilbert
Adler S. L.   +7 more
core   +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

Morlet Wavelets in Quantum Mechanics

open access: yesQuanta, 2012
Wavelets offer significant advantages for the analysis of problems in quantum mechanics. Because wavelets are localized in both time and frequency they avoid certain subtle but potentially fatal conceptual errors that can result from the use of plane ...
John Ashmead
doaj   +1 more source

Feynman's Path Integrals and Bohm's Particle Paths [PDF]

open access: yes, 2005
Both Bohmian mechanics, a version of quantum mechanics with trajectories, and Feynman's path integral formalism have something to do with particle paths in space and time. The question thus arises how the two ideas relate to each other.
Albeverio S A   +5 more
core   +3 more sources

Obtaining the non-relativistic quantum mechanics from quantum field theory: issues, folklores and facts

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
Given the classical dynamics of a non-relativistic particle in terms of a Hamiltonian or an action, it is relatively straightforward to obtain the non-relativistic quantum mechanics (NRQM) of the system.
T. Padmanabhan
doaj   +1 more source

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