Results 11 to 20 of about 78,966 (218)

Unfree gauge symmetry in the BV formalism

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
The BV formalism is proposed for the theories where the gauge symmetry parameters are unfree, being constrained by differential equations.
D. S. Kaparulin, S. L. Lyakhovich
doaj   +1 more source

A note on unfree gauge symmetry

open access: yesNuclear Physics B, 2019
We study the general structure of field theories with the unfree gauge symmetry where the gauge parameters are restricted by differential equations.
D.S. Kaparulin, S.L. Lyakhovich
doaj   +1 more source

Quantum Field Theory

open access: yesUniverse, 2023
This Special Issue on quantum field theory presents work covering a wide and topical range of subjects mainly within the area of interacting 4D quantum field theories subject to certain backgrounds [...]
Ralf Hofmann
doaj   +1 more source

Quantum Field Theory of Fluids [PDF]

open access: yesPhysical Review Letters, 2015
5 pages, 2 figures and 1 table. v2: Added references.
Gripaios, Ben, Sutherland, Dave
openaire   +4 more sources

Coulomb Problem for Classical Spinning Particles

open access: yesUniverse, 2023
We consider the motion of a weakly relativistic charged particle with an arbitrary spin in central potential e/r in terms of classical mechanics. We show that the spin–orbital interaction causes the precession of the plane of orbit around the vector of ...
Dmitry S. Kaparulin   +1 more
doaj   +1 more source

Calculation of the Acoustic Spectrum of a Cylindrical Vortex in Viscous Heat-Conducting Gas Based on the Navier–Stokes Equations

open access: yesComputation, 2016
An extremely interesting problem in aero-hydrodynamics is the sound radiation of a single vortical structure. Currently, this type of problem is mainly considered for an incompressible medium. In this paper a method was developed to take into account the
Tatiana Petrova, Fedor Shugaev
doaj   +1 more source

On Quantum Field Theory. I: Quantum Field Theory as Quantum Mechanics [PDF]

open access: yesProgress of Theoretical Physics, 1974
Summary: A new approach to finding a steady foundation of quantum field theory is investigated with the help of the so-called nonstandard mathematics. We construct a model of the quantum field theory as a quantum-mechanical system with very many degrees of freedom.
openaire   +2 more sources

QUANTUM FIELD THEORIES [PDF]

open access: yesInternational Journal of Modern Physics A, 2005
The scope of this review is to give a pedagogical introduction to some new calculations and methods developed by the author in the context of quantum groups and their applications. The review is self-contained and serves as a "first aid kit" before one ventures into the beautiful but bewildering landscape of Woronowicz's theory.
openaire   +3 more sources

Phase transition and piezoelectric property of (Ag,K)NbO3 ceramics

open access: yesJournal of Materiomics, 2022
AgNbO3 is an antiferroelectric (AFE) material with double hysteresis loop. Both the antiferroelectricity and ferroelectricity can be enhanced by doping.
Lin Chen   +5 more
doaj   +1 more source

Out-of-horizon correlations following a quench in a relativistic quantum field theory

open access: yesJournal of High Energy Physics, 2020
One of the manifestations of relativistic invariance in non-equilibrium quantum field theory is the “horizon effect” a.k.a. light-cone spreading of correlations: starting from an initially short-range correlated state, measurements of two observers at ...
I. Kukuljan, S. Sotiriadis, G. Takács
doaj   +1 more source

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