7 citations · 18 across the 10 of their papers we have counts for
11 papers
Berry-Landau Fermi-liquid theory: transport in presence of quantum geometry
Shuai A. Chen, Roderich Moessner
Landau Fermi-liquid theory characterizes interacting metals through quasiparticles and their residual interactions. It is a challenge to incorporate non-trivial quantum geometry --…
Quantum Metric Localization and Quantum Metric Protection
Wen-Bo Dai, Jinchao Zhao, Shuai A. Chen +1
The study of disorder effects in electronic systems is one of the central themes in physics. It is well established that in the Anderson localization regime, the localization lengt…
Kinetic kagome magnetism: from self-trapping RVB polarons to semiclassical correlations
Yufei Pei, Shuai A. Chen, Claudio Castelnovo +1
To gain deeper insight into the role of hole kinetics in determining magnetism in highly frustrated doped Mott insulators, we consider the single-hole counter-Nagaoka problem on th…
Quantum Metric Length as a Fundamental Length Scale in Disordered Flat Band Materials
Chun Wang Chau, Tian Xiang, Shuai A. Chen +1
Our previous understanding of electronic transport in disordered systems was based on the assumption that there is a finite Fermi velocity for the relevant electrons. The Fermi vel…
Generalized Peierls substitution for Wannier obstructions: response to disorder and interactions
Shuai A. Chen, Roderich Moessner, Tai Kai Ng
We study the interplay between quantum geometry, interactions, and external fields in complex band systems. When Wannier obstructions preclude a description based solely on atomic-…
Disorder-induced diffusion transport in flat-band systems with quantum metric
Chun Wang Chau, Tian Xiang, Shuai A. Chen +1
Our previous understanding of transport in disordered system depends on the assumption that there is a well-defined Fermi velocity. The Fermi velocity determines important length s…
Geometric Frustration Assisted Kinetic Ferromagnetism in Doped Mott Insulators
Qianqian Chen, Shuai A. Chen, Zheng Zhu
Understanding ferromagnetism mechanism in doped Mott insulators on frustrated lattices remains challenging at intermediate coupling and finite doping. Here, we study the itinerant…
Flat-band Fulde-Ferrell-Larkin-Ovchinnikov State from Quantum Geometric Discrepancy
Zi-Ting Sun, Ruo-Peng Yu, Shuai A. Chen +2
We propose a new scheme for realizing Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) Cooper pairing states within flat bands, in contrast to the conventional paradigm such as the Zeeman e…
Superconductivity from Quasiparticle Pairing of Intervalley Coherent State in Rhombohedral Trilayer Graphene
Chun Wang Chau, Shuai A. Chen, K. T. Law
Superconductivity is observed in rhombohedral trilayer graphene in a narrow regime between the flavor-symmetric state and the symmetry breaking phase, which cannot be described by…
Flat Band Josephson Junctions with Quantum Metric
Zhong C. F. Li, Yuxuan Deng, Shuai A. Chen +2
In this work, we consider superconductor/flat band material/superconductor (S/FB/S) Josephson junctions (JJs) where the flat band material possesses isolated flat bands with exactl…
Geometric and conventional contributions of superconducting diode effect: Application to flat-band systems
Jin-Xin Hu, Shuai A. Chen, K. T. Law
Nonreciprocal critical supercurrents give rise to the superconducting diode effect (SDE) in noncentrosymmetric superconductors when time-reversal symmetry is broken. In this paper,…