2 papers
cond-mat.supr-con2025
Josephson Diode Effect from Nonequilibrium Current in a Superconducting Interferometer
Daniel Shaffer, Songci Li, Jaglul Hasan +2
We investigate the Josephson diode effect in a superconducting interferometer under nonequilibrium conditions. In contrast to its thermodynamic counterpart, which requires the simu…
cond-mat.str-el2024
Quantum criticality and optical conductivity in a two-valley system
Yasha Gindikin, Songci Li, Alex Levchenko +3
We demonstrate that the optical conductivity of a Fermi liquid (FL) in the absence of umklapp scattering is dramatically affected by the topology of the Fermi surface (FS). Specifi…