Results 11 to 20 of about 219,185 (273)
Quantum Space-Time: Deformed Symmetries Versus Broken Symmetries [PDF]
CPT and Lorentz Symmetry, 2002 Several recent studies have concerned the faith of classical symmetries in quantum space-time. In particular, it appears likely that quantum (discretized, noncommutative,...) versions of Minkowski space-time would not enjoy the classical Lorentz ...
Amelino-Camelia, Giovanni
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Global Symmetries of Noncommutative Space-time [PDF]
Physical Review D, 2005 The global counterpart of infinitesimal symmetries of noncommutative space-time is discussed.Comment: 7 pages, no figures; minor changes in the bibliography; final version accepted for publication in Phys. Rev.
C. Gonera +6 more
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Ghost Cohomologies and Hidden Space-Time Symmetries [PDF]
International Journal of Modern Physics A, 2007 We observe and study new non-linear global space-time symmetries of the full ghost+matter action of RNS superstring theory. We show that these surprising new symmetries are generated by the special worldsheet currents (vertex operators) of RNS ...
Polyakov, Dimitri
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Duality Symmetric Actions with Manifest Space-Time Symmetries [PDF]
Physical Review D, 1995 We consider a space-time invariant duality symmetric action for a free Maxwell field and an $SL(2,{\bf R})\times SO(6,22)$ invariant effective action describing a low-energy bosonic sector of the heterotic string compactified on a six-dimensional torus ...
Pasti, Paolo +2 more
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Group Cohomology, Modular Theory and Space-time Symmetries [PDF]
Reviews in Mathematical Physics, 1994 The Bisognano-Wichmann property on the geometric behavior of the modular group of the von Neumann algebras of local observables associated to wedge regions in Quantum Field Theory is shown to provide an intrinsic sufficient criterion for the existence of
Brunetti, R., Guido, D., Longo, R.
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Tunable transport with broken space-time symmetries [PDF]
Physics Reports, 2014 Transport properties of particles and waves in spatially periodic structures that are driven by external time-dependent forces manifestly depend on the space-time symmetries of the corresponding equations of motion.
Denisov, Sergey +2 more
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Space-Time Symmetries of Quantized Tensionless Strings [PDF]
Physics Letters B, 1992 The tensionless limit of the free bosonic string is space-time conformally symmetric classically. Requiring invariance of the quantum theory in the light cone gauge tests the reparametrization symmetry needed to fix this gauge.
B. Sundborg +17 more
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Colourful Poincaré symmetry, gravity and particle actions
Journal 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
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Dyson’s classification and real division superalgebras
Journal 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
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Carroll/fracton particles and their correspondence
Journal of High Energy Physics, 2023 We exploit the close relationship between the Carroll and fracton/dipole algebras, together with the method of coadjoint orbits, to define and classify classical Carroll and fracton particles.
José Figueroa-O’Farrill +2 more
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