194 citations · 1k across the 32 of their papers we have counts for
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cond-mat.quant-gas2019★ 10 cited
Quench dynamics of Hopf insulators
Haiping Hu, Chao Yang, Erhai Zhao
Hopf insulators are exotic topological states of matter outside the standard ten-fold way classification based on discrete symmetries. Its topology is captured by an integer invari…
cond-mat.mes-hall2019★ 65 cited
Topological Invariants for Quantum Quench Dynamics from Unitary Evolution
Haiping Hu, Erhai Zhao
Recent experiments began to explore the topological properties of quench dynamics, i.e. the time evolution following a sudden change in the Hamiltonian, via tomography of quantum g…
cond-mat.mes-hall2019★ 140 cited
Dynamical Singularities of Floquet Higher-Order Topological Insulators
Haiping Hu, Biao Huang, Erhai Zhao +1
We propose a versatile framework to dynamically generate Floquet higher-order topological insulators by multi-step driving of topologically trivial Hamiltonians. Two analytically s…