84 citations · 113 across the 5 of their papers we have counts for
3 papers · 1 filter
Kosterlitz-Thouless Phase Transition and Ground State Fidelity: a Novel Perspective from Matrix Product States
Hong-Lei Wang, Jian-Hui Zhao, Bo Li +1
The Kosterlitz-Thouless transition is studied from the representation of the systems's ground state wave functions in terms of Matrix Product States for a quantum system on an infi…
Singularities in fidelity surfaces for quantum phase transitions: a geometric perspective
Huan-Qiang Zhou, Jian-Hui Zhao, Hong-Lei Wang +1
The fidelity per site between two ground states of a quantum lattice system corresponding to different values of the control parameter defines a surface embedded in a Euclidean spa…
Fidelity approach to quantum phase transitions: finite size scaling for quantum Ising model in a transverse field
Huan-Qiang Zhou, Jian-Hui Zhao, Bo Li
We analyze the scaling parameter, extracted from the fidelity for two different ground states, for the one-dimensional quantum Ising model in a transverse field near the critical p…