2 papers
cond-mat.mes-hall2020
Topological Invariants of a Filling-Enforced Quantum Band Insulator
Abijith Krishnan, Ashvin Vishwanath, Hoi Chun Po
Traditional ionic/covalent compound insulators arise from a commensuration between electron count and system volume. On the other hand, conventional topological insulators, outside…
quant-ph2019
Measuring complex partition function zeroes of Ising models in quantum simulators
Abijith Krishnan, Markus Schmitt, Roderich Moessner +1
Studying the zeroes of partition functions in the space of complex control parameters allows to understand formally how critical behavior of a many-body system can arise in the the…