202 citations · 908 across the 31 of their papers we have counts for
6 papers · 1 filter
Experimental Observation of Equilibrium and Dynamical Quantum Phase Transitions via Out-of-Time-Ordered Correlators
Xinfang Nie, Bo-Bo Wei, Xi Chen +8
The out-of-time-ordered correlators (OTOC) have been established as a fundamental concept for quantifying quantum information scrambling and diagnosing quantum chaotic behavior. Re…
Hybrid exceptional point created from type III Dirac point
L. Jin, H. C. Wu, Bo-Bo Wei +1
Degeneracy (exceptional) points embedded in energy band are distinct by their topological features. We report different hybrid two-state coalescences (EP2s) formed through merging…
Dynamical Scaling Laws of Out-of-Time-Ordered Correlators
Bo-Bo Wei, Gaoyong Sun, Myung-Joong Hwang
The out-of-time-ordered correlator (OTOC) is central to the understanding of information scrambling in quantum many-body systems. In this work, we show that the OTOC in a quantum m…
Fidelity as a probe for a deconfined quantum critical point
Gaoyong Sun, Bo-Bo Wei, Su-Peng Kou
Deconfined quantum critical point was proposed as a second-order quantum phase transition between two broken symmetry phases beyond the Landau-Ginzburg-Wilson paradigm. However, nu…
Universality in the Decay and Revival of Loschmidt Echoes
Myung-Joong Hwang, Bo-Bo Wei, Susana F. Huelga +1
A critically enhanced decay of the Loschmidt echo is characteristic of sudden quench dynamics near a quantum phase transition. Here, we demonstrate that the decay and revival of th…
Fidelity Susceptibility in One-dimensional Disordered Lattice Models
Bo-Bo Wei
We investigate quantum phase transitions in one-dimensional quantum disordered lattice models, the Anderson model and the Aubry-André model, from the fidelity susceptibility approa…