14 citations · 75 across the 27 of their papers we have counts for
8 papers · 1 filter
Information-geometric bounds on nonequilibrium relaxation in quantum Markov dynamics
Xiao-Kan Guo, Zhiqiang Huang
In this paper, we study the quantum information-geometric structure underlying short-time nonequilibrium relaxation in quantum Markov dynamics, and derive bounds on the nonequilibr…
Subsystem eigenstate thermalization hypothesis for translation invariant systems
Zhiqiang Huang, Xiao-Kan Guo
The eigenstate thermalization hypothesis for translation invariant quantum spin systems has been proved recently by using random matrices. In this paper, we study the subsystem ver…
Leggett-Garg inequalities for multitime processes
Zhiqiang Huang, Xiao-Kan Guo
We study some aspects of the Leggett-Garg inequalities by using the operator-state formalism for multitime processes. The process tensor in its Choi-state form, which we call proce…
On the relation between quantum Darwinism and approximate quantum Markovianity
Xiao-Kan Guo, Zhiqiang Huang
There are strong evidences in the literature that quantum non-Markovianity would hinder the presence of Quantum Darwinism. In this Letter, we study the relation between quantum Dar…
Classical and quantum parts of conditional mutual information for open quantum systems
Zhiqiang Huang, Xiao-Kan Guo
We study the classical, classical-quantum, and quantum parts of conditional mutual information in the ``system-environment-ancilla'' setting of open quantum systems. We perform the…
Quantifying non-Markovianity via conditional mutual information
Zhiqiang Huang, Xiao-Kan Guo
In this paper, we study measures of quantum non-Markovianity based on the conditional mutual information. We obtain such measures by considering multiple parts of the total environ…