181 citations · 209 across the 5 of their papers we have counts for
5 papers
Bhatia-Davis formula in the quantum speed limit
Jing Liu, Zibo Miao, Libin Fu +1
The Bhatia-Davis theorem provides a useful upper bound for the variance in mathematics, and in quantum mechanics, the variance of a Hamiltonian is naturally connected to the quantu…
Optimal building block of multipartite quantum battery
Tian-Ran Yang, Yu-Yu Zhang, Hui Dong +2
To take quantum advantage of collective effects in many-body system, we design an elementary block for building multipartite quantum battery, which enables charging an atomic ensem…
Majorana stellar representation for mixed-spin systems
Yuguo Su, Fei Yao, Yanming Che +2
By describing the evolution of a quantum state with the trajectories of the Majorana stars on a Bloch sphere, Majorana's stellar representation provides an intuitive geometric pers…
Powerful harmonic charging in quantum batteries
Yu-Yu Zhang, Tian-Ran Yang, Libin Fu +1
We consider a classical harmonic driving field as the energy charger for the quantum batteries, which consist of an ensemble of two-level atoms. The maximum stored energy and the f…
Ground-state properties of the two-site Hubbard-Holstein model: an exact solution
Yu-Yu Zhang, Tao Liu, Qing-Hu Chen +2
We revisit the two-site Hubbard-Holstein model by using extended phonon coherent states. The nontrivial singlet bipolaron is studied exactly in the whole coupling regime. The groun…