Noninvertible Time-Reversal Symmetry
Aug 8, 2022
31 pages
Published in:
- Phys.Rev.Lett. 130 (2023) 13, 131602
- Published: Mar 28, 2023
e-Print:
- 2208.04331 [hep-th]
DOI:
- 10.1103/PhysRevLett.130.131602 (publication)
Report number:
- YITP-SB-2022-28,
- MIT-CTP/5457
View in:
Citations per year
Abstract: (APS)
In gauge theory, it is commonly stated that time-reversal symmetry only exists at or for a -periodic angle. In this Letter, we point out that in both the free Maxwell theory and massive QED, there is a noninvertible time-reversal symmetry at every rational angle, i.e., . The noninvertible time-reversal symmetry is implemented by a conserved, antilinear operator without an inverse. It is a composition of the naive time-reversal transformation and a fractional quantum Hall state. We also find similar noninvertible time-reversal symmetries in non-Abelian gauge theories, including the SU(2) super Yang-Mills theory along the locus on the conformal manifold.Note:
- 31 pages
- time reversal: symmetry
- space: conformal
- gauge field theory: Yang-Mills
- quantum electrodynamics: massive
- gauge field theory: nonabelian
- supersymmetry
- fractional
- pi p
- SU(2)
- conservation law
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