456 citations · 3.3k across the 66 of their papers we have counts for
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Curvature Induced Topological Defects of -wave Superfluid on a Sphere
Ruihua Fan, Pengfei Zhang, Zhe-Yu Shi
We study the ground state of spinless fermions living on a sphere across -wave Feschbach resonances. By construsting a microscopic model of fermions on a general curved surface,…
Sigature of the universal super Efimov Effect: three-body contact in two dimensional Fermi gases
Pengfei Zhang, Zhenhua Yu
A new class of universal "three-body" bound states has been recently predicted theoretically for identical fermions interacting at p-wave resonance in two dimensions. This phenomen…
Measuring Topological Number of a Chern-Insulator from Quench Dynamics
Ce Wang, Pengfei Zhang, Xin Chen +2
In this letter we show how the topological number of a static Hamiltonian can be measured from a dynamical quench process. We focus on a two-band Chern insulator in two-dimension,…
Out-of-Time-Order Correlation at a Quantum Phase Transition
Huitao Shen, Pengfei Zhang, Ruihua Fan +1
In this paper we numerically calculate the out-of-time-order correlation functions in the one-dimensional Bose-Hubbard model. Our study is motivated by the conjecture that a system…
Out-of-Time-Order Correlation for Many-Body Localization
Ruihua Fan, Pengfei Zhang, Huitao Shen +1
In this paper we first compute the out-of-time-order correlators (OTOC) for both a phenomenological model and a random-field XXZ model in the many-body localized phase. We show tha…
Effective theory and universal relations for Fermi gases near a -wave interaction resonance
Pengfei Zhang, Shizhong Zhang, Zhenhua Yu
In this work, we present an effective field theory to describe a two-component Fermi gas near a -wave interaction resonance. The effective field theory is renormalizable by matc…