Results 31 to 40 of about 4,995,991 (287)

Emerging internal symmetries from effective spacetimes

open access: yesPhysics Letters B, 2017
Can global internal and spacetime symmetries be connected without supersymmetry? To answer this question, we investigate Minkowski spacetimes with d space-like extra dimensions and point out under which general conditions external symmetries induce ...
Manfred Lindner, Sebastian Ohmer
doaj   +1 more source

Quantum Carroll/fracton particles

open access: yesJournal of High Energy Physics, 2023
We classify and relate unitary irreducible representations (UIRs) of the Carroll and dipole groups, i.e., we define elementary quantum Carroll and fracton particles and establish a correspondence between them.
José Figueroa-O’Farrill   +2 more
doaj   +1 more source

Global symmetries in the antifield formalism [PDF]

open access: yesPhysics Letters B, 1996
In this paper, two things are done. (i) First, it is shown that any global symmetry of a gauge-invariant theory can be extended to the ghosts and the antifields so as to leave invariant the solution of the master-equation (before gauge fixing). (ii) Second, it is proved that the incorporation of the rigid symmetries to the solution of the master ...
Henneaux, Marc   +2 more
openaire   +3 more sources

Symmetries in planning problems [PDF]

open access: yes, 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   +4 more sources

Dyson’s classification and real division superalgebras

open access: yesJournal of High Energy Physics, 2021
It is well-known that unitary irreducible representations of groups can be usefully classified in a 3-fold classification scheme: Real, Complex, Quaternionic.
Roman Geiko, Gregory W. Moore
doaj   +1 more source

Duality and global symmetries [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 1998
This is a general introduction to duality in field theories. The existence and breaking of global symmetries is used as a guideline to systematically prove duality between different field theories. Systems discussed include abelian and non-abelian T-duality in string theory, abelian and nonabelian bosonization, and duality for massless and massive ...
openaire   +2 more sources

Non-invertible symmetries from discrete gauging and completeness of the spectrum

open access: yesJournal 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

Colourful Poincaré symmetry, gravity and particle actions

open access: yesJournal of High Energy Physics, 2021
We construct a generalisation of the three-dimensional Poincaré algebra that also includes a colour symmetry factor. This algebra can be used to define coloured Poincaré gravity in three space-time dimensions as well as to study generalisations of ...
Joaquim Gomis   +3 more
doaj   +1 more source

Representations of sl(2,?) in category O and master symmetries [PDF]

open access: yes, 2015
We show that the indecomposable sl(2,?)-modules in the Bernstein-Gelfand-Gelfand category O naturally arise for homogeneous integrable nonlinear evolution systems. We then develop a new approach called the O scheme to construct master symmetries for such
J. P. Wang, Wang, Jing Ping
core   +1 more source

Symbolic computation of variational symmetries in optimal control [PDF]

open access: yes, 2006
We use a computer algebra system to compute, in an efficient way, optimal control variational symmetries up to a gauge term. The symmetries are then used to obtain families of Noether's first integrals, possibly in the presence of nonconservative ...
André Gomes-dos-Santos   +17 more
core   +3 more sources

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