Andreev scattering in the asymmetric ladder with preformed bosonic pairs

Details Andreev scattering in the asymmetric ladder with preformed bosonic pairs Andreev scattering in the asymmetric ladder with preformed bosonic pairs

2001-03-20

arxiv.org/abs/cond-mat/0103405v3

Phys. Rev. B 64, R060502 (2001) [Rapid Com]

Physics

Condensed Matter

Superconductivity

5 pages, final version (To appear in PRB Rapid Communication)

Scientific paper

10.1103/PhysRevB.64.060502

We discuss the phase coherence which emanates from the ladder-like proximity effect between a ``weak superconductor'' with preformed bosonic pairs (here, a single-chain Luther-Emery liquid with superconducting correlations that decay approximately as $x^{-1}$) and a Fermi gas with unpaired fermions. Carefully studying tunneling mechanism(s), we show that the boson-mediated Cooper pairing between remaining unpaired electrons results in a quasi long-range superconductivity: Superconducting correlations decay very slowly as $x^{-\eta}$ with $\eta\approx 1/2$. This process is reminiscent of the coupling of fermions to preformed bosonic pairs introduced in the context of high-Tc cuprates.

Affiliated with

Also associated with

No associations

Rating

Andreev scattering in the asymmetric ladder with preformed bosonic pairs 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 Andreev scattering in the asymmetric ladder with preformed bosonic pairs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Andreev scattering in the asymmetric ladder with preformed bosonic pairs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1539