222 citations · 1.7k across the 67 of their papers we have counts for
4 papers · 1 filter
Conserving Approximation of Pairing theories in Fermionic superfluid phase
Yan He, Hao Guo
Respecting the conservation laws of momentum and energy in a many body theory is very important for understanding the transport phenomena. The previous conserving approximation req…
Gauge Invariant Linear Response Theories for Ultracold Fermi Gases with Pseudogap
Hao Guo, Yan He
Recent experimental progresses allow for exploring some important physical quantities of ultracold Fermi gases, such as the compressibility, spin susceptibility, viscosity, optical…
Shear viscosity and imperfect fluidity in bosonic and fermionic superfluids
Rufus Boyack, Hao Guo, K. Levin
In this paper we address the ratio of the shear viscosity to entropy density in bosonic and fermionic superfluids. A small is associated with nearly perfect fluidity, a…
Topological Soliton with Nonzero Hopf Invariant in Yang-Mills-Higgs Model
Yan He, Hao Guo
We propose a topological soliton or instanton solution with nonzero Hopf invariant to the 3+1D non-Abelian gauge theory coupled with scalar fields. This solution, which we call Hop…