171 citations · 2.1k across the 111 of their papers we have counts for
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Atomic boson-fermion mixtures in 1D box potentials: Few-body and mean-field many-body analyses
Bishal Parajuli, Daniel Pecak, Chih-Chun Chien
We study binary atomic boson-fermion mixtures confined in one dimensional box potentials by few-body theory with contact interactions and mean-field many-body theory with density-d…
Particle and thermal transport through one dimensional topological systems via Lindblad formalism
Yan He, Chih-Chun Chien
We apply the Lindblad quantum master equation to two examples of one-dimensional topological systems, the Su-Schrieffer-Heeger (SSH) model and Kitaev chain, to study their particle…
Uhlmann phase of coherent states and the Uhlmann-Berry correspondence
Xin Wang, Xu-Yang Hou, Zheng Zhou +2
We first compare the geometric frameworks behind the Uhlmann and Berry phases in a fiber-bundle language and then evaluate the Uhlmann phases of bosonic and fermionic coherent stat…
Uhlmann holonomy against Lindblad dynamics of topological systems at finite temperatures
Yan He, Chih-Chun Chien
The Uhlmann phase, which reflects the holonomy as the purified state of a density matrix traverses a loop in the parameter space, has been used to characterize topological properti…
Generalizations of Berry phase and differentiation of purified state and thermal vacuum of mixed states
Xu-Yang Hou, Zi-Wen Huang, Zheng Zhou +3
Two representations of mixed states by state-vectors, known as purified state and thermal vacuum, have been realized on quantum computers. While the two representations look simila…
Metamorphic dynamical quantum phase transition in double-quench processes at finite temperatures
Xu-Yang Hou, Qu-Cheng Gao, Hao Guo +1
By deriving a general framework and analyzing concrete examples, we demonstrate a class of dynamical quantum phase transitions (DQPTs) in one-dimensional two-band systems going thr…