Noether currents of locally equivalent symmetries
Sign Up to like & getrecommendations! Published in 2020 at "Physica Scripta"
DOI: 10.1088/1402-4896/ab50a5
Abstract: Local symmetry transformations play an important role for establishing the existence and form of a conserved (Noether) current in systems with a global continuous symmetry. We explain how this fact leads to the existence of… read more here.
Keywords: equivalent symmetries; locally equivalent; noether currents; momentum ... See more keywords
Locally equivalent quasifree states and index theory
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Physics A: Mathematical and Theoretical"
DOI: 10.1088/1751-8121/ac508b
Abstract: We consider quasifree ground states of Araki’s self-dual canonical anti-commutation relation algebra from the viewpoint of index theory and symmetry protected topological (SPT) phases. We first review how Clifford module indices characterise a topological obstruction… read more here.
Keywords: ground states; index theory; locally equivalent; equivalent quasifree ... See more keywords