Spontaneous formation of pi-soliton in a superconducting wire with an odd number of electrons

H. J. Kwon, V. M. Yakovenko

Research output: Contribution to journalConference articlepeer-review

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 languageEnglish (US)
JournalJournal De Physique. IV : JP
Volume12
Issue number9
StatePublished - Nov 1 2002
Externally publishedYes
EventInternational Workshop on Electronic Crystals - ECRYS 2002 - Saint Flour, France
Duration: Sep 2 2002Sep 7 2002

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Spontaneous formation of pi-soliton in a superconducting wire with an odd number of electrons'. Together they form a unique fingerprint.

Cite this