13 papers
Engineering the non-Hermitian Su-Schrieffer-Heeger model with skin effects in Rydberg atom arrays
J. N. Bai, F. Yang, D. Yan +2
We propose and systematically analyze a practical scheme for implementing a one-dimensional non-Hermitian (NH) Su-Schrieffer-Heeger model using individually addressable Rydberg ato…
Correlation-Driven -Wave Superconducting Dome from Pseudogap Spectral Reconstruction
Yue Yuan, Ziwen Pan, F. Yang
Previous theoretical studies [Nat. Phys. {\bf 16}, 1175 (2020)] based on the Hatsugai-Kohmoto model have examined the stability of -wave superconductivity in strongly correlated…
Microscopic phase-transition theory of charge density waves: revealing hidden crossovers of phason and amplitudon
F. Yang, L. Q. Chen
We develop a self-consistent phase-transition theory of charge density waves (CDWs), starting from a purely microscopic model. Specifically, we derive a microscopic CDW gap equatio…
Preformed Cooper pairing and the uncondensed normal-state component in phase-fluctuating monolayer cuprate superconductivity
F. Yang, Y. Shi, L. Q. Chen
We develop a self-consistent microscopic framework beyond mean-field theory for monolayer cuprate superconductivity. It couples fermionic quasiparticles with collective phase dynam…
Superconducting Decoherence and Thermal Quenching of the Josephson Diode Effect in Low-Dimensional Josephson Systems
F. Yang, C. Y. Dong, Joshua A. Robinson +1
Motivated by recent studies on superconducting (SC) diode nonreciprocity, we uncover a generic smooth SC-phase decoherence mechanism in low-dimensional Josephson structures. Contra…
A tractable framework for phase transitions in phase-fluctuating disordered 2D superconductors: applications to bilayer MoS and disordered InO thin films
F. Yang, L. Q. Chen
Starting from the purely microscopic model, we go beyond conventional mean-field theory and develop a self-consistent microscopic thermodynamic framework for disordered 2D supercon…