Manuel Houzet
Directeur de PHELIQS – Laboratoire PHotonique ELectronique et Ingénierie QuantiqueS, CEA, Grenoble
https://www.pheliqs.fr/en/Pages/Portrait/Manuel-Houzet.aspx
« Josephson tunneling at odd parity »
The quantum mechanics of the Josephson effect is the core ingredient for quantum technologies with superconducting circuits. Our work opens a new avenue in this field by predicting that the Josephson quantum mechanics in the odd parity sector, when a quasiparticle in trapped in an Andreev bound state, is fundamentally different from the conventional one in the even sector. Our study unveils a rich physics than contrasts with the naïve expectation of supercurrent quench, which prevailed so far. We predict a series of novel effects that can be tested in forthcoming experiments with superconductor/semiconductor/superconductor junctions, which have been studied intensively in recent years, both using nanowires as well as two-dimensional electron gases.
