Results 11 to 20 of about 25,446 (301)

The fermionic signature operator and space-time symmetries [PDF]

open access: yesAdvances in Theoretical and Mathematical Physics, 2018
We show that and specify how space-time symmetries give rise to corresponding symmetries of the fermionic signature operator and generalized fermionic projector states.
Finster, Felix, Reintjes, Moritz
openaire   +3 more sources

GHOST COHOMOLOGIES AND HIDDEN SPACE–TIME SYMMETRIES [PDF]

open access: yesInternational Journal of Modern Physics A, 2007
We observe and study new nonlinear 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 (physical vertex operators) of RNS superstring theory, violating the equivalence of superconformal ghost pictures.
DIMITRI POLYAKOV, Polyakov D.
openaire   +4 more sources

QUANTUM SPACE-TIME: DEFORMED SYMMETRIES VERSUS BROKEN SYMMETRIES [PDF]

open access: yesCPT and Lorentz Symmetry, 2002
LaTex, 7 pages, talk given at the 2nd Meeting on CPT and Lorentz Symmetry (CPT 01), Bloomington, Indiana, 15-18 Aug ...
GIOVANNI AMELINO-CAMELIA   +1 more
openaire   +3 more sources

Discrete space-time symmetries [PDF]

open access: yesCzechoslovak Journal of Physics, 1993
Symmetries have always fascinated human beings; they are found in nature, art, and architecture. Physicists, like other scientists have often used symmetries as a basis of their understanding of nature. When the dynamics is unknown, symmetries serve to delineate and define it. When the dynamics is known, symmetries are used to study structure.
Henley, E. M.
openaire   +2 more sources

ON THE SPACE–TIME SYMMETRIES OF NONCOMMUTATIVE GAUGE THEORIES [PDF]

open access: yesInternational Journal of Modern Physics A, 2002
We study the space–time symmetries and transformation properties of the non-commutative U(1) gauge theory, by using Noether charges. We carry out our analysis by keeping an open view on the possible ways θμν could transform. Since the theory is not invariant under the conformal transformations, with the only exception of space–time translations, we ...
Iorio, A., Sýkora, T.
openaire   +4 more sources

Space-time supercrystals from non-Abelian electric translation symmetries

open access: yesPhysical Review Research
Electronic supercrystals can form in spatial or temporal dimensions where traditional mechanisms usually require many-body interactions, such as Wigner crystals or discrete time crystals.
Jian Wang, James Jun He, Qian Niu
doaj   +2 more sources

A particle model with extra dimensions from coadjoint Poincaré symmetry

open access: yesJournal 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 of Bianchi I space–times [PDF]

open access: yesJournal of Mathematical Physics, 2000
All diagonal proper Bianchi I space–times are determined which admit certain important symmetries. It is shown that for Homothetic motions, Conformal motions and Kinematic Self-Similarities the resulting space–times are defined explicitly in terms of a set of parameters, whereas Affine Collineations, Ricci Collineations, and Curvature Collineations, if
Tsamparlis, M, Apostolopoulos, PS
openaire   +4 more sources

Tensors and spinors in de Sitter space

open access: yesJournal of High Energy Physics, 2022
We construct the Wightman function for symmetric traceless tensors and Dirac fermions in dS d+1 in a coordinate and index free formalism using a d + 2 dimensional ambient space. We expand the embedding space formalism to cover spinor and tensor fields in
Ben Pethybridge, Vladimir Schaub
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

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