3 papers
cond-mat.mtrl-sci2025
Dynamics of self-dual kagome metamaterials and the emergence of fragile topology
Pegah Azizi, Siddhartha Sarkar, Kai Sun +1
Recent years have seen the discovery of systems featuring fragile topological states. These states of matter lack certain protection attributes typically associated with topology a…
cond-mat.str-el2024
Phases of (2+1)D SO(5) non-linear sigma model with a topological term on a sphere: multicritical point and disorder phase
Bin-Bin Chen, Xu Zhang, Yuxuan Wang +2
Novel critical phenomena beyond the Landau-Ginzburg-Wilson paradigm have been long sought after. Among many candidate scenarios, the deconfined quantum critical point (DQCP) consti…
quant-ph2024
Loss-induced universal one-way transport in periodically driven systems
Chang Shu, Kai Zhang, Kai Sun
In this paper, we show that a periodically driven Aubry-André-Harper model with imbalanced on-site gain/loss supports universal one-way transport that is immune to impurities and…