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cond-mat.mtrl-sci2021
Part I: Staggered index and 3D winding number of Kramers-degenerate bands
Alexander C. Tyner, Pallab Goswami
For three-dimensional (3D) crystalline insulators, preserving space-inversion () and time-reversal () symmetries, the third homotopy class of two-fold, Kr…
cond-mat.supr-con2021★ 2 cited
Mechanism of skyrmion condensation and pairing for twisted bi-layer graphene
Dian Jing, Alexander Conkey Tyner, Pallab Goswami
When quantum flavor Hall insulator phases of itinerant fermions are disordered by strong quantum fluctuations, the condensation of skyrmion textures of order parameter fields can l…
cond-mat.mtrl-sci2021★ 5 cited
Non-Abelian Stokes theorem and quantized Berry flux
Alexander C. Tyner, Shouvik Sur, Qunfei Zhou +4
Band topology of anomalous quantum Hall insulators can be precisely addressed by computing Chern numbers of constituent non-degenerate bands that describe quantized, Abelian Berry…