Intrinsically gapless topological phases

Thorngren, R; Vishwanath, A; Verresen, R

Thorngren, R (corresponding author), Harvard Univ, Ctr Math Sci & Applicat, Cambridge, MA 02138 USA.

PHYSICAL REVIEW B, 2021; 104 (7):

Abstract

Topology in quantum matter is typically associated with gapped phases. For example, in symmetry protected topological (SPT) phases, the bulk energy ga......

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