Results 11 to 20 of about 1,441 (262)

An improved Noether's theorem for spacetime symmetries [PDF]

open access: yes, 2022
We exploit an ambiguity somewhat hidden in Noether's theorem to derive systematically, for relativistic field theories, the stress-energy tensor's improvement terms that are associated with additional spacetime symmetries beyond translations. We work out
Nicolis, Alberto   +2 more
core   +1 more source

Generalized symmetries and Noether's theorem in QFT [PDF]

open access: yes, 2022
We show that generalized symmetries cannot be charged under a continuous global symmetry having a Noether current. Further, only non-compact generalized symmetries can be charged under a continuous global symmetry.
Casini, Horacio German   +4 more
core   +1 more source

On the Symmetries of Cosmological Perturbations [PDF]

open access: yes, 2020
The space of inflationary models is vast, containing wide varieties of mechanisms, symmetries, and spectra of particles. Consequently, the space of observational signatures is similarly complex. Hence, it is natural to look for boundaries of the space of

core   +2 more sources

Tutorial on scale and conformal symmetries in diverse dimensions [PDF]

open access: yes, 2011
We review the relation between scale and conformal symmetries in various models and dimensions. We present a dimensional reduction from relativistic to non-relativistic conformal dynamics.United States. Dept.
R Jackiw   +3 more
core   +1 more source

Poincaré, Scale and Conformal Symmetries : Gauge Perspective and Cosmological Ramifications [PDF]

open access: yes, 2016
Symmetries are omnipresent and play a fundamental role in the description of Nature. Thanks to them, we have at our disposal nontrivial selection rules that dictate how a theory should be constructed.
Karananas, Georgios
core   +2 more sources

4d/2d Correspondence: Instantons and W-Algebras [PDF]

open access: yes, 2012
In this thesis, we study the 4d/2d correspondence of Alday-Gaiotto-Tachikawa, which relates the class of 4-dimensional N=2 gauge theories (theories of class S) to a 2-dimensional conformal field theory. The 4d gauge theories are obtained by compactifying
Song, Jaewon
core   +1 more source

Shift operators from the simplex representation in momentum-space CFT

open access: yesJournal of High Energy Physics, 2023
We derive parametric integral representations for the general n-point function of scalar operators in momentum-space conformal field theory. Recently, this was shown to be expressible as a generalised Feynman integral with the topology of an (n − 1 ...
Francesca Caloro, Paul McFadden
doaj   +1 more source

Topology and emergent symmetries in dense compact star matter [PDF]

open access: yes, 2023
It has been found that the topology effect and the possible emergent scale and hidden local flavor symmetries at high density reveal a novel structure of the compact star matter.
Yong-Liang Ma   +3 more
core   +1 more source

Conformal bootstrap in momentum space at finite volume

open access: yesJournal of High Energy Physics, 2023
In this paper, we Fourier transform the Wightman function concerning energy and angular momentum on the S D−1 spatial slice in radial quantization in D = 2, 3 dimensions.
Kanade Nishikawa
doaj   +1 more source

Tensor network models of AdS/qCFT [PDF]

open access: yes, 2022
The study of critical quantum many-body systems through conformal field theory (CFT) is one of the pillars of modern quantum physics. Certain CFTs are also understood to be dual to higher-dimensional theories of gravity via the anti-de Sitter/conformal ...
Jahn, A.   +8 more
core   +1 more source

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