Results 41 to 50 of about 5,230,276 (287)
Sterile neutrinos and global symmetries [PDF]
Physical Review D, 2005 We use an effective-field-theory approach to construct models with naturally light sterile neutrinos, due to either exact or accidental global symmetries. The most attractive models we find are based on gauge symmetries, either discrete or continuous. We give examples of simple models based on Z_N, U(1)', and SU(2)'.
Sayre, J. +2 more
openaire +2 more sources
Non-invertible symmetries from discrete gauging and completeness of the spectrum
Journal of High Energy Physics, 2023 We study global 1- and (d − 2)-form symmetries for gauge theories based on disconnected gauge groups which include charge conjugation. For pure gauge theories, the 1-form symmetries are shown to be non-invertible.
Guillermo Arias-Tamargo +1 more
doaj +1 more source
2-group global symmetries, hydrodynamics and holography [PDF]
, 2023 2-group global symmetries are a particular example of how higher-form and conventional global symmetries can fuse together into a larger structure. We construct a theory of hydrodynamics describing the finite-temperature realization of a 2-group global ...
Iqbal, Nabil +5 more
core +2 more sources
Simple applications of Noether's first theorem in quantum mechanics and electromagnetism [PDF]
, 2003 Internal global symmetries exist for the free non-relativistic Schrodinger particle, whose associated Noether charges---the space integrals of the wavefunction and the wavefunction multiplied by the spatial coordinate---are exhibited.
Holland, Peter +3 more
core +1 more source
A particle model with extra dimensions from coadjoint Poincaré symmetry
Journal of High Energy Physics, 2020 Starting from the coadjoint Poincaré algebra we construct a point particle relativistic model with an interpretation in terms of extra-dimensional variables.
Andrea Barducci +2 more
doaj +1 more source
Symmetries in planning problems [PDF]
, 2003 Symmetries arise in planning in a variety of ways. This paper describes the ways that symmetry aises most naturally in planning problems and reviews the approaches that have been applied to exploitation of symmetry in order to reduce search for plans. It
Fox, Maria, Long, Derek
core +3 more sources
The classification of bifurcations with hidden symmetries [PDF]
, 2000 We set up a singularity-theoretic framework for classifying one-parameter steady-state bifurcations with hidden symmetries. This framework also permits a non-trivial linearization at the bifurcation point.
Manoel, Míriam, Stewart, Ian
core +1 more source
Branes and Non-Invertible Symmetries [PDF]
, 2022 =4 supersymmetric Yang-Mills theories with algebra(4N) and appropriate choices of global structure can have non-invertible symmetries. We identify the branes holographically dual to the non-invertible symmetries, and derive the fusion rules for the ...
Iñaki García Etxebarria +2 more
core +1 more source
Non-invertible Gauss law and axions
Journal of High Energy Physics, 2023 In axion-Maxwell theory at the minimal axion-photon coupling, we find non-invertible 0- and 1-form global symmetries arising from the naive shift and center symmetries.
Yichul Choi, Ho Tat Lam, Shu-Heng Shao
doaj +1 more source
Noninvertible Global Symmetries in the Standard Model
Physical Review Letters, 2022 We identify infinitely many non-invertible generalized global symmetries in QED and QCD for the real world in the massless limit. In QED, while there is no conserved Noether current for the $U(1)_\text{A}$ axial symmetry because of the ABJ anomaly, for every rational angle $2πp/N$, we construct a conserved and gauge-invariant topological symmetry ...
Yichul Choi, Ho Tat Lam, Shu-Heng Shao
openaire +3 more sources