Abstract
We consider a one-dimensional superconducting wire where the total number of electrons can be controlled in the Coulomb blockade regime. We predict that a pi-soliton (kink) will spontaneously form in the system when the number of electron is odd, because this configuration has a lower energy. If the wire with an odd number of electrons is closed in a ring, the phase difference on the two sides of the soliton will generate a supercurrent detectable by SQUID. The two degenerate states with the current flowing clockwise or counterclockwise can be utilized as a qbit.
| Original language | English (US) |
|---|---|
| Journal | Journal De Physique. IV : JP |
| Volume | 12 |
| Issue number | 9 |
| State | Published - Nov 2002 |
| Externally published | Yes |
| Event | International Workshop on Electronic Crystals - ECRYS 2002 - Saint Flour, France Duration: Sep 2 2002 → Sep 7 2002 |
ASJC Scopus subject areas
- Physics and Astronomy(all)