762 citations · 3.3k across the 87 of their papers we have counts for
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Understanding the Protected Nodes and Collapse of the Fermi Arcs in Underdoped Cuprate Superconductors
Qijin Chen, K. Levin
We show how recent angle resolved photoemission measurements addressing the Fermi arcs in the cuprates reveal a very natural phenomenological description of the complex superfluid…
Thermodynamics and superfluid density in BCS-BEC crossover with and without population imbalance
Yan He, Chih-Chun Chien, Qijin Chen +1
We address the thermodynamics, density profiles and superfluid density of trapped fermions undergoing BCS-BEC crossover, with and without population imbalance. Our approach represe…
Radio Frequency Spectroscopy of Trapped Fermi Gases with Population Imbalance
Yan He, Chih-Chun Chien, Qijin Chen +1
Motivated by recent experiments, we address, in a fully self consistent fashion, the behavior and evolution of radio frequency (RF) spectra as temperature and polarization are vari…
Superfuid-insulator transitions at non-integer filling in optical lattices of fermionic atoms
Chih-Chun Chien, Yan He, Qijin Chen +1
We determine the superfluid transition temperatures and the ground states of the attractive Hubbard model and find new insulating phases associated with non-integer filling a…
First and second sound modes at finite temperature in trapped Fermi gases from BCS to BEC
Yan He, Qijin Chen, Chih-Chun Chien +1
We determine the temperature dependence of first and second sound mode frequencies for trapped Fermi gases undergoing BCS to Bose Einstein condensation (BEC) crossover. Our res…
Fermionic superfluidity: From high Tc superconductors to ultracold Fermi gases
Qijin Chen, Chih-Chun Chien, Yan He +1
We present a pairing fluctuation theory which self-consistently incorporates finite momentum pair excitations in the context of BCS--Bose-Einstein condensation (BEC) crossover, and…