Non-cancellation of the parity anomaly in the strong-field regime of QED2+1
Quantum fluctuations lead to an anomalous violation of parity symmetry in quantum electrodynamics for an even number of spatial dimensions. While the leading parity-odd electric current vanishes in vacuum, we uncover a non-cancellation of the anomaly for strong electric fields with distinct macrosco...
Gespeichert in:
| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
5 May 2020
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| In: |
Physics letters
Year: 2020, Jahrgang: 805 |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/j.physletb.2020.135459 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.physletb.2020.135459 Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S037026932030263X 
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| Verfasserangaben: | R. Ott, T.V. Zache, N. Mueller, J. Berges |
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| 520 | |a Quantum fluctuations lead to an anomalous violation of parity symmetry in quantum electrodynamics for an even number of spatial dimensions. While the leading parity-odd electric current vanishes in vacuum, we uncover a non-cancellation of the anomaly for strong electric fields with distinct macroscopic signatures. We perform real-time lattice simulations with fully dynamical gauge fields and Wilson fermions in 2+1 space-time dimensions. In the static field limit, relevant at early times, we solve the problem analytically. Our results point out the fundamental role of quantum anomalies for strong-field phenomena, relevant for a wide range of condensed matter and high-energy applications, but also for the next generation of gauge theory quantum simulators. | ||
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