Results 21 to 30 of about 584,458 (264)

Instantons, symmetries and anomalies in five dimensions

open access: yesJournal of High Energy Physics, 2021
All five-dimensional non-abelian gauge theories have a U(1) I global symmetry associated with instantonic particles. We describe an obstruction to coupling U(1) I to a classical background gauge field that occurs whenever the theory has a one-form center
Pietro Benetti Genolini, Luigi Tizzano
doaj   +1 more source

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

Higher-form symmetries of 6d and 5d theories

open access: yesJournal of High Energy Physics, 2021
We describe general methods for determining higher-form symmetry groups of known 5d and 6d superconformal field theories (SCFTs), and 6d little string theories (LSTs).
Lakshya Bhardwaj, Sakura Schäfer-Nameki
doaj   +1 more source

Many-body Majorana-like zero modes without gauge symmetry breaking

open access: yesPhysical Review Research, 2021
Topological superconductors represent one of the key hosts of Majorana-based topological quantum computing. Typical scenarios for one-dimensional (1D) topological superconductivity assume a broken gauge symmetry associated to a superconducting state ...
V. Vadimov   +4 more
doaj   +1 more source

Concepts of Symmetry in the Work of Wolfgang Pauli [PDF]

open access: yes, 2007
"Symmetry" was one of the most important methodological themes in 20th-century physics and is probably going to play no lesser role in physics of the 21st century.
Giulini, Domenico, Giulini, D.
core   +1 more source

Symmetric Gapped Interfaces of SPT and SET States: Systematic Constructions

open access: yesPhysical Review X, 2018
Symmetry-protected topological (SPT) states have boundary ’t Hooft anomalies that obstruct the effective boundary theory realized in its own dimension with UV completion and with an on-site G-symmetry.
Juven Wang, Xiao-Gang Wen, Edward Witten
doaj   +1 more source

When ℤ2 one-form symmetry leads to non-invertible axial symmetries

open access: yesJournal of High Energy Physics, 2023
We study non-abelian gauge theories with fermions in a representation such that the surviving electric 1-form symmetry is ℤ2. This includes SU(N) gauge theories with matter in the (anti)symmetric and N even, and USp(2N) with a Weyl fermion in the adjoint,
Riccardo Argurio, Romain Vandepopeliere
doaj   +1 more source

(p − 1)-bracket for Dp-branes in large R-R field background

open access: yesJournal of High Energy Physics, 2023
The volume-preserving diffeomorphism is a key feature that characterizes the large constant R-R (p − 1)-form field background in a Dp-brane theory. It represents a symmetry of the theory that preserves the volume of space.
Chen-Te Ma
doaj   +1 more source

Geometrical aspects of local gauge symmetry [PDF]

open access: yes, 2004
This paper is an analysis of the geometrical interpretation of local gauge symmetry for theories of the Yang-Mills ...
Guay, Alexandre   +1 more
core  

Diversity and complexity in neural organoids

open access: yesFEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

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