3 papers
quant-ph2026
Semiclassical Ehrenfest paths in open quantum systems
Xiao-Kan Guo
We study the semiclassical Ehrenfest trajectories in open quantum systems. We first derive in explicit form the Fokker-Planck equation that governs the time evolution of the mixing…
quant-ph2025
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…
quant-ph2024
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…