Results 11 to 20 of about 5,230,276 (287)
Chern-Weil global symmetries and how quantum gravity avoids them
Journal of High Energy Physics, 2021 We draw attention to a class of generalized global symmetries, which we call “Chern-Weil global symmetries,” that arise ubiquitously in gauge theories. The Noether currents of these Chern-Weil global symmetries are given by wedge products of gauge field ...
Ben Heidenreich +5 more
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Global Symmetries, Local Symmetries and Groupoids [PDF]
Symmetry, 2021 Local symmetries are primarily defined in the case of spacetime, but several authors have defined them outside this context, sometimes with the help of groupoids. We show that, in many cases, local symmetries can be defined as global symmetries. We also show that groups can be used, rather than groupoids, to handle local symmetries.
Petitjean, Michel, Michel Petitjean
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Fermionic higher-form symmetries [PDF]
SciPost Physics, 2023 In this paper, we explore a new type of global symmetries - the fermionic higher-form symmetries. They are generated by topological operators with fermionic parameter, which act on fermionic extended objects.
Yi-Nan Wang, Yi Zhang
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Global symmetries and partial confinement [PDF]
Journal of High Energy Physics, 2022 In gauge theories, spontaneous breaking of the centre symmetry provides a precise definition of deconfinement. In large-N gauge theories, evidence has emerged recently that between confined and deconfined phases a partially-deconfined phase can appear ...
Masanori Hanada +3 more
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Generalized Global Symmetries [PDF]
Journal of High Energy Physics, 2015 A $q$-form global symmetry is a global symmetry for which the charged operators are of space-time dimension $q$; e.g. Wilson lines, surface defects, etc., and the charged excitations have $q$ spatial dimensions; e.g. strings, membranes, etc. Many of the properties of ordinary global symmetries ($q$=0) apply here.
Brian Willett +2 more
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Dark matter and global symmetries [PDF]
Physics Letters B, 2016 General considerations in general relativity and quantum mechanics are known to potentially rule out continuous global symmetries in the context of any consistent theory of quantum gravity.
Yann Mambrini +2 more
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Exploring 2-group global symmetries
Journal of High Energy Physics, 2019 We analyze four-dimensional quantum field theories with continuous 2-group global symmetries. At the level of their charges, such symmetries are identical to a product of continuous flavor or spacetime symmetries with a 1-form global symmetry U(1) B (1) ,
Clay Córdova +2 more
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Global symmetries of quantum lattice models under non-invertible dualities
SciPost Physics CoreNon-invertible dualities/symmetries have become an important tool in the study of quantum field theories and quantum lattice models in recent years. One of the most studied examples is non-invertible dualities obtained by gauging a discrete group.
Weiguang Cao, Yuan Miao, Masahito Yamazaki
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Comments on global symmetries, anomalies, and duality in (2 + 1)d
Journal of High Energy Physics, 2017 We analyze in detail the global symmetries of various (2 + 1)d quantum field theories and couple them to classical background gauge fields. A proper identification of the global symmetries allows us to consider all non-trivial bundles of those background
Francesco Benini +2 more
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Constraints on discrete global symmetries in quantum gravity [PDF]
Journal of High Energy Physics, 2021 The question whether global symmetries can be realized in quantum-gravity-matter-systems has far-reaching phenomenological consequences. Here, we collect evidence that within an asymptotically safe context, discrete global symmetries of the form ℤ n , n >
Passant Ali +3 more
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