20 citations · 48 across the 9 of their papers we have counts for
10 papers
Exploring Dynamical Quantum Phase Transitions via the Dynamical Phase Accumulated at an Equilibrium Critical Point
Han-Chuan Kou, Peng Li, Zhi-Han Zhang +1
We investigate dynamical quantum phase transitions (DQPTs) generated by a two-step linear quench with a finite waiting time at the equilibrium critical point. The waiting stage lea…
Interference of critical dynamics associated with zero modes
Zhi-Han Zhang, Han-Chuan Kou, Peng Li
We study the interference of critical dynamics associated with zero modes (ICDZM) in the generalized Creutz ladders using closed quench paths that pass through two critical points…
Optimized adiabatic-impulse protocol preserving Kibble-Zurek scaling with attenuated anti-Kibble-Zurek behavior
Han-Chuan Kou, Zhi-Han Zhang, Xin-Hui Wu +3
We propose an optimized adiabatic-impulse (OAI) protocol that substantially reduces the evolution time for crossing a quantum phase transition while preserving Kibble-Zurek (KZ) sc…
Critical dynamics and its interferometry in the one-dimensional p-wave-paired Aubry-André-Harper model
Zhi-Han Zhang, Han-Chuan Kou, Peng Li
In this work, we focus on the critical dynamics of the one-dimensional quasiperiodic p-wave-paired Aubry-André-Harper model, which exhibits a transition point between the gapped cr…
Kibble-Zurek scaling immune to anti-Kibble-Zurek behavior in driven open systems at the limit of loss difference
Han-Chuan Kou, Zhi-Han Zhang, Peng Li
We investigate the dissipative quench dynamics in a family of two-band fermionic systems by linearly ramping the staggered on-site energy. In the Lindblad formalism, we present an…
Varying quench dynamics in the transverse Ising chain: the Kibble-Zurek, saturated, and pre-saturated regimes
Han-Chuan Kou, Peng Li
According to the Kibble-Zurek mechanism, there is a universal power-law relationship between the defect density and the quench rate during a slow linear quench through a critical p…
Interferometry based on quantum Kibble-Zurek mechanism
Han-Chuan Kou, Peng Li
We propose an interferometry within the framework of quantum Kibble-Zurek mechanism by exemplifying two prototypical quench protocols, namely the round-trip and quarter-turn ones,…
Quantum cluster kink and ring frustration
Zhen-Yu Zheng, Han-Chuan Kou, Peng Li
In this paper, we work on the pure and mixed cluster models with periodic boundary condition. The first purpose is to establish the concept of quantum cluster kink. We clarify that…
Impurity-driven transitions in frustrated quantum Ising ring
Han-Chuan Kou, Zhen-Yu Zheng, Peng Li
We study the quantum phase transitions driven by a point impurity in a chain seamed with ring frustration. Rich phases and quantum phase transitions are uncovered and characterized…
Quaternary Jordan-Wigner mapping and topological extended-kink phase in the interacting Kitaev ring
Zhen-Yu Zheng, Han-Chuan Kou, Peng Li
On a ring, a single Jordan-Wigner transformation between the Kitaev model and the spin model suffers redundant degrees of freedom. However, we can establish an exact quaternary Jor…