[qmeso-seminar] семинар 1 декабря

[Quantum Mesoscopics Dept.]

СЕМИНАР СЕКТОРА КВАНТОВОЙ МЕЗОСКОПИКИ

пятница 1 декабря, 15:00, онлайн


R. Egger (U. Duesseldorf)

Superconducting diodes out of equilibrium


The superconducting diode effects refers to supercurrent flow only along
one direction, but not in the opposite one. We review this phenomenon
and describe our recent theory [1,2] of voltage-biased Josephson diodes
in junctions of superconductors with finite-momentum Cooper pairing.
For a short weak link, this problem can be solved by scattering theory,
taking into account multiple Andreev reflections to all orders. We find
rich subharmonic structure with highly efficient rectification at subgap
voltages and large junction transparency.

[1] A. Zazunov, J. Rech, T. Jonckheere, B. Gremaud, T. Martin, and R.
Egger, arXiv:2307.14698.
[2] A. Zazunov, J. Rech, T. Jonckheere, B. Gremaud, T. Martin, and R.
Egger, arXiv:2307.15386.

[Трансляция: https://zoom.us/j/96948399564?pwd=RXlKbW96Qm1tZEV6SHB0Q2JYeTdrdz09]

подробнее: http://qmeso.itp.ac.ru/seminars.php?abstract=true