21 citations · 44 across the 6 of their papers we have counts for
4 papers · 1 filter
Quantum phase transition induced by real-space topology
C. Li, G. Zhang, S. Lin +1
A quantum phase transition (QPT), including both topological and symmetry breaking types, is usually induced by the change of global parameters, such as external fields or global c…
Majorana charges, winding numbers and Chern numbers in quantum Ising models
G. Zhang, C. Li, Z. Song
Mapping a many-body state on a loop in parameter space is a simple way to characterize a quantum state. The connections of such a geometrical representation to the concepts of Cher…
Amplitude modulated Bloch oscillations of photon probability distribution in a cavity-atom system
Gang Zhang, Wenhui Hu, Zhi Song
We study the dynamics of the Rabi Hamiltonian in the medium coupling regime with , where is atom-field coupling constant, is the field…
Gaussian enveloped decoherence of the atomic states in quantum cavity
G. Zhang, Z. Song
We revisit the decoherence of the atomic state in the resonant Jaynes-Cummings model with the field initially being in a coherent state. We show that the purity of the atom exhibit…