Analogous BMS Symmetry in QED and Quantum Anomaly in Dirac and Weyl Semimetals

Andrea Addazi; Antonino Marciano

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Analogous BMS Symmetry in QED and Quantum Anomaly in Dirac and Weyl Semimetals

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arxiv 1905.08940 v1 pith:5PX7ZNPI submitted 2019-05-22 cond-mat.mes-hall cond-mat.str-elgr-qchep-th

Analogous BMS Symmetry in QED and Quantum Anomaly in Dirac and Weyl Semimetals

Andrea Addazi , Antonino Marciano This is my paper

classification cond-mat.mes-hall cond-mat.str-elgr-qchep-th

keywords symmetrydiracsemimetalssymmetriesweylanalogousanalogyanomalous

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We show that the asymptotic infinite dimensional enlarged gauge symmetries constructed for QED are anomalous in Dirac and Weyl semimetals. This symmetry is particularly important in particle physics for its analogy with the Bondi-Metzner-Sachs (BMS) symmetries in gravity, as well as for its connection with QED soft IR theorems. This leads to observable effects, because of the induction of a new current in the material, which carries a memory of the BMS symmetry precursor.

Analogous BMS Symmetry in QED and Quantum Anomaly in Dirac and Weyl Semimetals

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