Quantum phase slips in the presence of finite-range disorder

Details Quantum phase slips in the presence of finite-range disorder Quantum phase slips in the presence of finite-range disorder

2005-03-14

arxiv.org/abs/cond-mat/0503343v2

Phys. Rev. Lett. 95, 107007 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, as accepted at Phys. Rev. Letters

Scientific paper

10.1103/PhysRevLett.95.107007

To study the effect of disorder on quantum phase slips (QPS) in superconducting wires, we consider the plasmon-only model where disorder can be incorporated into a first-principles instanton calculation. We consider weak but general finite-range disorder and compute the formfactor in the QPS rate associated with momentum transfer. We find that the system maps onto dissipative quantum mechanics, with the dissipative coefficient controlled by the wave (plasmon) impedance Z of the wire and with a superconductor-insulator transition at Z=6.5 kOhm. We speculate that the system will remain in this universality class after resistive effects at the QPS core are taken into account.

Affiliated with

Also associated with

No associations

Rating

Quantum phase slips in the presence of finite-range disorder does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Quantum phase slips in the presence of finite-range disorder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum phase slips in the presence of finite-range disorder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-316026