Results 31 to 40 of about 174,677 (231)

Spontaneous conformal symmetry breaking in fishnet CFT

open access: yesPhysics Letters B, 2020
Quantum field theories with exact but spontaneously broken conformal invariance have an intriguing feature: their vacuum energy (cosmological constant) is equal to zero. Up to now, the only known ultraviolet complete theories where conformal symmetry can
Georgios K. Karananas   +2 more
doaj   +1 more source

Chiral Symmetry Breaking in Quantum Field Theory [PDF]

open access: yesProgress of Theoretical Physics Supplement, 1985
An analysis of the spontaneous breaking of chiral symmetry in three dimensional electrodynamics is described. It is argued that this model, when treated in a 1/ N expansion, does exhibit spontaneous chiral symmetry breaking. This is established by finding analytic and numer· ical solutions to the Dyson-Schwinger equation and then computing the ...
openaire   +1 more source

An introduction to spontaneous symmetry breaking

open access: yesSciPost Physics Lecture Notes, 2019
Perhaps the most important aspect of symmetry in physics is the idea that a state does not need to have the same symmetries as the theory that describes it. This phenomenon is known as spontaneous symmetry breaking.
Aron J. Beekman, Louk Rademaker, Jasper van Wezel
doaj   +1 more source

Condensate induced transitions between topologically ordered phases [PDF]

open access: yes, 2008
We investigate transitions between topologically ordered phases in two spatial dimensions induced by the condensation of a bosonic quasiparticle. To this end, we formulate an extension of the theory of symmetry breaking phase transitions which applies to
Bais, F. A., Slingerland, J. K.
core   +4 more sources

Momentum relaxation of holographic Weyl semimetal from massive gravity

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
We consider the effects of momentum relaxation on the topological quantum phase transitions in holographic Weyl semimetals. The translational symmetry breaking in the field theory is realized in the framework of massive gravity.
Junkun Zhao
doaj   +1 more source

Tunneling in quantum field theory with spontaneous symmetry breaking [PDF]

open access: yesPhysics Letters B, 1995
8 pages, latex, 2 figures appended (uuencoded postscript); complete postscript file is available at ftp://dept.physics.upenn.edu/pub/Kusenko/UPR671T ...
openaire   +2 more sources

Grand unification and the Planck scale: an SO(10) example of radiative symmetry breaking

open access: yesJournal of High Energy Physics, 2022
Grand unification of gauge couplings and fermionic representations remains an appealing proposal to explain the seemingly coincidental structure of the Standard Model. However, to realise the Standard Model at low energies, the unified symmetry group has
Aaron Held, Jan Kwapisz, Lohan Sartore
doaj   +1 more source

Probabilistic cellular automata for interacting fermionic quantum field theories

open access: yesNuclear Physics B, 2021
A classical local cellular automaton can describe an interacting quantum field theory for fermions. We construct a simple classical automaton for a particular version of the Thirring model with imaginary coupling. This interacting fermionic quantum field
C. Wetterich
doaj   +1 more source

Gravitational Coleman-Weinberg mechanism

open access: yesJournal of High Energy Physics, 2023
The Coleman-Weinberg mechanism provides a procedure by which a scalar field, which initially has no mass parameters, acquires a mass due to the anomalous nature of scale symmetry.
Clara Álvarez-Luna   +3 more
doaj   +1 more source

Torsional deformation of nonrelativistic string theory

open access: yesJournal of High Energy Physics, 2021
Nonrelativistic string theory is a self-contained corner of string theory, with its string spectrum enjoying a Galilean-invariant dispersion relation. This theory is unitary and ultraviolet complete, and can be studied from first principles.
Ziqi Yan
doaj   +1 more source

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