13 citations · 20 across the 4 of their papers we have counts for
4 papers · 1 filter
Evolution of entanglement spectra under generic quantum dynamics
Po-Yao Chang, Xiao Chen, Sarang Gopalakrishnan +1
We characterize the early stages of the approach to equilibrium in isolated quantum systems through the evolution of the entanglement spectrum. We find that the entanglement spectr…
Nodal-chain network, intersecting nodal rings and triple points coexisting in nonsymmorphic Ba3Si4
Jin Cai, Yuee Xie, Po-Yao Chang +2
Coexistence of topological elements in a topological metal/semimetal (TM) has gradually attracted attentions. However, the non-topological factors always mess up the Fermi surface…
Topology and entanglement in quench dynamics
Po-Yao Chang
We classify the topology of quench dynamics by homotopy groups. A relation between the topological invariant of a post-quench order parameter and the topological invariant of a sta…
Hopf-chain networks evolved from triple points
Yuee Xie, Jin Cai, Jinwoong Kim +2
Exotic links and chains attract interests across various disciplines including mathematics, biology, chemistry and physics. Here, we propose that topological Hopf-chain networks, c…