Results 41 to 50 of about 70,461 (142)

K-theory in quantum field theory [PDF]

open access: yesCurrent Developments in Mathematics, 2001
We survey three different ways in which K-theory in all its forms enters quantum field theory. In Part 1 we give a general argument which relates topological field theory in codimension two with twisted K-theory, and we illustrate with some finite models.
openaire   +2 more sources

Symmetry fractionalized (irrationalized) fusion rules and two domain-wall Verlinde formulae

open access: yesJournal of High Energy Physics
We investigate the composite systems consisting of topological orders separated by gapped domain walls. We derive a pair of domain-wall Verlinde formulae, that elucidate the connection between the braiding of interdomain excitations labeled by pairs of ...
Yu Zhao   +3 more
doaj   +1 more source

Lepton flavor violating decays lj → liγγ

open access: yesNuclear Physics B
In this paper, we study the lepton flavor violating decays of the lj→liγγ (j=2, 3; i=1, 2) processes under the U(1)XSSM. The U(1)XSSM is the addition of three singlet new Higgs superfields and right-handed neutrinos to the minimal supersymmetric standard
Ming-Yue Liu   +7 more
doaj   +1 more source

Towards Quantum Field Theory in Categorical Quantum Mechanics [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2018
In this work, we use tools from non-standard analysis to introduce infinite-dimensional quantum systems and quantum fields within the framework of Categorical Quantum Mechanics.
Stefano Gogioso, Fabrizio Genovese
doaj   +1 more source

Confinement in the tricritical Ising model

open access: yesPhysics Letters B, 2022
We study the leading and sub-leading magnetic perturbations of the thermal E7 integrable deformation of the tricritical Ising model. In the low-temperature phase, these magnetic perturbations lead to the confinement of the kinks of the model.
M. Lencsés, G. Mussardo, G. Takács
doaj   +1 more source

Nonlinear symmetry-fragmentation of nonabelian anyons in symmetry-enriched topological phases: a string-net model realization

open access: yesJournal of High Energy Physics
Symmetry-enriched topological (SET) phases combine intrinsic topological order with global symmetries, giving rise to novel symmetry phenomena. While SET phases with Abelian anyons are relatively well understood, those involving nonabelian anyons remain ...
Nianrui Fu   +3 more
doaj   +1 more source

Effective dynamics of quantum fluctuations in field theory: with applications to cosmology

open access: yesJournal of High Energy Physics
We develop a novel framework for describing quantum fluctuations in field theory, with a focus on cosmological applications. Our method uniquely circumvents the use of operator/Hilbert-space formalism, instead relying on a systematic treatment of ...
Ding Ding, Yu Zhao, Yidun Wan
doaj   +1 more source

Quantum Thermodynamics at Strong Coupling: Operator Thermodynamic Functions and Relations

open access: yesEntropy, 2018
Identifying or constructing a fine-grained microscopic theory that will emerge under specific conditions to a known macroscopic theory is always a formidable challenge.
Jen-Tsung Hsiang, Bei-Lok Hu
doaj   +1 more source

Classification of gapped domain walls of topological orders in 2+1 dimensions: a Levin-Wen model realization

open access: yesJournal of High Energy Physics
This paper introduces a novel systematic construction of gapped domain walls (GDWs) within the Levin-Wen (LW) model. By gluing two LW models along their open sides in a compatible way, we achieve a complete GDW classification by subsets of bulk input ...
Yanyan Chen   +4 more
doaj   +1 more source

Instabilities of Weyl loop semimetals

open access: yesNew Journal of Physics, 2016
We study Weyl-loop semi-metals with short range interactions, focusing on the possible interaction driven instabilities. We introduce an ϵ expansion regularization scheme by means of which the possible instabilities may be investigated in an unbiased ...
Shouvik Sur, Rahul Nandkishore
doaj   +1 more source

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