Abstract
An odd-occupied quantum dot in a Josephson junction can flip transmission phase, creating a pi 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 hybridisation of the confined spin with zero-energy modes in the leads.
Original language | English |
---|---|
Article number | 116803 |
Journal | Physical Review Letters |
Volume | 125 |
Issue number | 11 |
Number of pages | 6 |
ISSN | 0031-9007 |
DOIs | |
Publication status | Published - 8 Sep 2020 |
Keywords
- TRANSITION