20 citations · 54 across the 7 of their papers we have counts for
7 papers
Quantum geometric bounds at finite temperature for one-dimensional chiral systems
Peng He, Hai-Tao Ding, Yu-Guo Liu
The geometry and topology of quantum states are intimately related at zero temperature through exact bounds that constrain geometric quantities from below by topological invariants…
Floquet quantum geometry in periodically driven topological insulators
Peng He, Jian-Te Wang, Jiangbin Gong +1
Quantum geometry plays a fundamental role across many branches of modern physics, yet its full characterization in nonequilibrium systems remains a challenge. Here, we propose a fr…
Quantum circuit for measuring an operator's generalized expectation values and its applications to non-Hermitian winding numbers
Ze-Hao Huang, Peng He, Li-Jun Lang +1
We propose a general quantum circuit based on the swap test for measuring the quantity of an arbitrary operator with respect to two quantum stat…
Quantum quenches in a pseudo-Hermitian Chern insulator
Peng He, Yan-Qing Zhu, Jian-Te Wang +1
We propose to uncover the topology of a pseudo-Hermitian Chern insulator by quantum quench dynamics. The Bloch Hamiltonian of the pseudo-Hermitian Chern insulator is defined in the…
New trends in quantum integrability: Recent experiments with ultracold atoms
Xi-Wen Guan, Peng He
Over the past two decades quantum engineering has made significant advances in our ability to create genuine quantum many-body systems using ultracold atoms. In particular, some pr…
Extracting non-Abelian quantum metric tensor and its related Chern numbers
Hai-Tao Ding, Yan-Qing Zhu, Peng He +4
The complete geometry of quantum states in parameter space is characterized by the quantum geometric tensor, which contains the quantum metric and Berry curvature as the real and i…
Damping transition in an open generalized Aubry-André-Harper model
Peng He, Yu-Guo Liu, Jian-Te Wang +1
We study the damping dynamics of the single-particle correlation for an open system under periodic and aperiodic order, which is dominated by the Lindblad master equation. In the a…