Results 21 to 30 of about 1,067,624 (281)

Chern-Simons Path Integrals in S2 × S1

Mathematics, 2015
Using torus gauge fixing, Hahn in 2008 wrote down an expression for a Chern-Simons path integral to compute the Wilson Loop observable, using the Chern-Simons action \(S_{CS}^\kappa\), \(\kappa\) is some parameter.
Adrian P. C. Lim
doaj   +1 more source

On the Coherent State Path Integral for Linear Systems [PDF]

, 2005
We present a computation of the coherent state path integral for a generic linear system using ``functional methods'' (as opposed to discrete time approaches).
A. Albeverio, C. G. Torre, C. Itzykson, D. Shale, F. Berezin, J. Klauder, L. Faddeev, L. Schulman, O. Bratteli, R. Wald   +9 more
core   +4 more sources

The functional integral formulation of the Schrieffer–Wolff transformation

New Journal of Physics, 2016
We revisit the Schrieffer–Wolff transformation and present a path integral version of this important canonical transformation. The equivalence between the low-energy sector of the Anderson model in the so-called local moment regime and the spin-isotropic
Farzaneh Zamani, Pedro Ribeiro, Stefan Kirchner   +2 more
doaj   +1 more source

Harmonic Path Integral Diffusion

IEEE Access
Harmonic Path Integral Diffusion (H-PID) introduces a novel approach to sampling from complex, continuous probability distributions by creating a time-dependent “bridge” from an initial point to the target distribution.
Hamidreza Behjoo, Michael Chertkov
doaj   +1 more source

Integral transforms of the quantum mechanical path integral: hit function and path averaged potential

, 2018
We introduce two new integral transforms of the quantum mechanical transition kernel that represent physical information about the path integral.
Edwards, James P., Gerber, Urs, Schubert, Christian, Trejo, Maria Anabel, Weber, Axel   +4 more
core   +1 more source

Path Integral Discussion for Smorodinsky-Winternitz Potentials: I.\ Two- and Three Dimensional Euclidean Space

, 1994
Path integral formulations for the Smorodinsky-Winternitz potentials in two- and three-dimen\-sional Euclidean space are presented. We mention all coordinate systems which separate the Smorodinsky-Winternitz potentials and state the corresponding path ...
Aharonov, Barut, Barut, Bernido, Bohm, Bonatos, Buchholz, Böhm, Böhm, Calogero, Carpio-Bernido, Carpio-Bernido, Carpio-Bernido, Carpio-Bernido, Carpio-Bernido, Castrigiano, Cheng, Chetouani, Chetouani, Chetouani, Chetouani, Cisneros, Coulson, Daboul, Davtyan, DeWitt, Dowker, Dowker, Duru, Duru, Duru, Duru, Eisenhart, Erdélyi, Erdélyi, Evans, Evans, Feynman, Feynman, Fischer, Fischer, Fock, Friš, Friš, Gel'fand, Gel'fand, Gerry, Gerry, Gervais, Goovaerts, Grabert, Gradshteyn, Granovsky, Granovsky, Grosche, Grosche, Grosche, Grosche, Grosche, Grosche, Grosche, Grosche, Grosche, Grosche, Guha, Hartmann, Hietarinta, Higgs, Holt, Infeld, Inomata, Inomata, Inomata, Inomata, Inomata, Kallies, Kalnins, Kalnins, Kibler, Kibler, Kibler, Kibler, Kibler, Kibler, Kibler, Kiefer, Kleinert, Kleinert, Langguth, Leemon, Lucht, Lutsenko, Lutsenko, Makarov, Mardoyan, Mardoyan, Marinov, McLaughlin, Meixner, Mizrahi, Mizrahi, Mizrahi, Moon, Morette, Morette-DeWitt, Morse, Morse, Olevski??, Omote, Otchik, Pak, Pak, Patera, Pauli, Peak, Picken, Pogosyan, Quesne, Schrödinger, Steiner, Steiner, Steveson, Storchak, Sökmen, Tanikella, Teller, Vaidya, Van Hoang, Vilenkin, Wiegel, Winternitz, Winternitz, Zaslow, Zhedanov   +133 more
core   +1 more source

Path Integral for Quantum Operations

, 2007
In this paper we consider a phase space path integral for general time-dependent quantum operations, not necessarily unitary. We obtain the path integral for a completely positive quantum operation satisfied Lindblad equation (quantum Markovian master ...
Abragam A, Alicki R, Arveson W, Blum K, Dyson F J, Emch G, Exner P, Fick E, Gel'fand I M, Huang K, Mensky M B, Ramshaw J D, Ryder L H, Schwinger J, Schwinger J, Slavnov A, Tarasov V E, Tarasov V E, Tarasov V E, Tarasov V E, Tarasov V E, Tarasov V E, Tarasov V E, Tuckerman M E, Vasily E Tarasov   +24 more
core   +1 more source

A New Space-Time Theory Unravels the Origins of Classical Mechanics for the Dirac Equation

Quantum Reports
The Feynman path integral plays a central role in quantum mechanics, linking classical action to propagators and relating quantum electrodynamics (QED) to Feynman diagrams.
Wei Wen
doaj   +1 more source

Path Integral for Inflationary Perturbations

, 2010
The quantum theory of cosmological perturbations in single field inflation is formulated in terms of a path integral. Starting from a canonical formulation, we show how the free propagators can be obtained from the well known gauge-invariant quadratic ...
Gerasimos Rigopoulos, L. D. Faddeev, P. Ramond, P. A. M. Dirac, Tomislav Prokopec, V. F. Mukhanov, V. F. Mukhanov   +6 more
core   +1 more source

Effective diffusion of a tracer in active bath: A path-integral approach

National Science Open
We investigate the effective diffusion of a tracer immersed in an active particle bath consisting of self-propelled particles. Utilising the Dean's method developed for the equilibrium bath and extending it to the nonequilibrium situation, we derive a ...
Feng Mengkai, Hou Zhonghuai
doaj   +1 more source