14 citations · 19 across the 9 of their papers we have counts for
9 papers
Spin-Orbit Induced Confinement of Correlated Bound States in the Continuum
Kai Chen, Junyan Guan, Zhongming Gu +1
Repulsively bound doublons are two-particle composites formed by strong interactions and are usually separated from the scattering continuum. Introducing spin-orbit coupling fundam…
Switchable Surface Linear Photogalvanic Effect in the Magnetic Weyl Semimetal Co3Sn2S2
Niket Shah, Aymen Nomani, Kai Chen +2
We investigate the linear photogalvanic effect (LPGE) on the surface of the magnetic Weyl semimetal Co3Sn2S2 using a Green's-function and diagrammatic formalism. While the LPGE van…
Layer-number parity induced topological phase transition
Kai Chen, Junyan Guan, Jiamin Guo +3
We demonstrate that stacking topologically trivial layers, under enforced symmetry restrictions, yields emergent topological phases with protected boundary states. Remarkably, the…
Enhanced Superconducting Diode Effect in the Asymmetric Hatsugai-Kohmoto Model
Kai Chen, Pavan Hosur
The superconducting diode effect (SDE), characterized by a nonreciprocal supercurrent, has attracted significant attention in recent years due to its potential applications. Howeve…
Non-Hermitian quantum geometric tensor and nonlinear electrical response
Kai Chen, Jie Zhu
We demonstrate that the non-Hermitian quantum geometric tensor (QGT) governs nonlinear electrical responses in systems with a spectral line gap. The quantum metric, which is the sy…
The Effect of the Non-Abelian Quantum Metric on Superfluidity
Kai Chen, Bishnu Karki, Pavan Hosur
The quantum geometric tensor, which encodes the full geometric information of quantum states in projective Hilbert space, plays a crucial role in condensed matter physics. In this…
Robust boundary Luttinger surfaces in topological band structures
Kai Chen, Pavan Hosur
The standard paradigm of topological phases posits that two phases with identical symmetries are separated by a bulk phase transition, while symmetry breaking provides a path in pa…
Nonlinear Hall Effects induced by Berry Curvature Dipole in CuPb(PO)O
Bishnu Karki, Kai Chen, Pavan Hosur
The nonlinear Hall effect (NLHE), an emergent response in systems with broken inversion symmetry, provides a powerful tool for probing topological transport properties. In this con…
Intrinsic superconducting diode effects in tilted Weyl and Dirac semimetals
Kai Chen, Bishnu Karki, Pavan Hosur
We explore Weyl and Dirac semimetals with tilted nodes as platforms for realizing an intrinsic superconducting diode effect. Although tilting breaks sufficient spatial and time-rev…