Results 31 to 40 of about 7,892 (272)
Emergent symmetries and coexisting orders in Dirac fermion systems
Physical Review Research, 2020 We consider interacting (2+1)-dimensional Dirac fermions with competing symmetry-breaking electronic instabilities, as described by relativistic quantum field theories of the Gross-Neveu-Yukawa flavor with anticommuting mass terms.
Emilio Torres +4 more
doaj +1 more source
Higher-form symmetry breaking at Ising transitions
Physical Review Research, 2021 In recent years, new phases of matter that are beyond the Landau paradigm of symmetry breaking have been accumulating, and to catch up with this fast development, new notions of global symmetry are introduced.
Jiarui Zhao +3 more
doaj +1 more source
The problem of symmetry breaking and in variance of the vacuum in quantum field theory
Soviet Physics Uspekhi, 1970 A. A. Grib +2 more
openalex +2 more sources
Resonances and PT symmetry in quantum curves
Journal of High Energy Physics, 2020 In the correspondence between spectral problems and topological strings, it is natural to consider complex values for the string theory moduli. In the spectral theory side, this corresponds to non-Hermitian quantum curves with complex spectra and ...
Yoan Emery +2 more
doaj +1 more source
Spontaneous conformal symmetry breaking in fishnet CFT
Physics 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]
Progress 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
SciPost 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
Momentum relaxation of holographic Weyl semimetal from massive gravity
European 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
Grand unification and the Planck scale: an SO(10) example of radiative symmetry breaking
Journal 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
Nuclear 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