Quantum Dot Parity Effects in Trivial and Topological Josephson Junctions.
Phys Rev Lett
; 125(11): 116803, 2020 Sep 11.
Article
in En
| MEDLINE
| ID: mdl-32975997
ABSTRACT
An odd-occupied quantum dot in a Josephson junction can flip transmission phase, creating a π junction. When the junction couples topological superconductors, no phase flip is expected. We investigate this and related effects in a full-shell hybrid interferometer, using gate voltage to control dot-junction parity and axial magnetic flux to control the transition from trivial to topological superconductivity. Enhanced zero-bias conductance and critical current for odd parity in the topological phase reflects hybridization of the confined spin with zero-energy modes in the leads.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Phys Rev Lett
Year:
2020
Type:
Article
Affiliation country:
Denmark