1 citations · 1 across the 4 of their papers we have counts for
4 papers · 1 filter
Exploring critical states of the quantum Rabi model via Hamiltonian variational ansätze
Mei Peng, Xu-Dan Xie, Dan-Bo Zhang
Characterizing quantum critical states towards the thermodynamic limit is essential for understanding phases of matter. The power of quantum simulators for preparing the critical s…
Variational Quantum Algorithm for Solving the Liouvillian Gap
Xu-Dan Xie, Zheng-Yuan Xue, Dan-Bo Zhang
In open quantum systems, the Liouvillian gap characterizes the relaxation time toward the steady state. However, accurately computing this quantity is notoriously difficult due to…
Determining non-Hermitian parent Hamiltonian from a single eigenstate
Xu-Dan Xie, Zheng-Yuan Xue, Dan-Bo Zhang
A quantum state for being an eigenstate of some local Hamiltonian should be constraint by zero energy variance and consequently, the constraint is rather strong that a single eigen…
Variational quantum simulation of the quantum critical regime
Zhi-Quan Shi, Xu-Dan Xie, Dan-Bo Zhang
The quantum critical regime marks a zone in the phase diagram where quantum fluctuation around the critical point plays a significant role at finite temperatures. While it is of gr…