4 papers
Andreev exceptional points in Josephson junctions formed by minimal Kitaev chains
Jorge Cayao, Masatoshi Sato
We consider Josephson junctions formed by two minimal Kitaev chains and investigate how the interplay between non-Hermiticity and superconducting phase difference enables the reali…
Nonlocal Josephson diode effect in minimal Kitaev chains
Jorge Cayao, Masatoshi Sato
We study the emergence of the nonlocal Josephson effect in a system composed of three laterally coupled minimal Kitaev chains and exploit it to realize the nonlocal Josephson diode…
Non-Hermitian Josephson junctions with four Majorana zero modes
Jorge Cayao, Masatoshi Sato
Josephson junctions formed by finite-length topological superconductors host four Majorana zero modes when the phase difference between the superconductors is and their len…
Non-Hermitian multiterminal phase-biased Josephson junctions
Jorge Cayao, Masatoshi Sato
We study non-Hermitian Josephson junctions formed by multiple superconductors and discover the emergence of exceptional points entirely determined by the interplay of the distinct…