Transport through an Interacting Quantum Dot Coupled to Two Superconducting Leads

Details Transport through an Interacting Quantum Dot Coupled to Two Superconducting Leads Transport through an Interacting Quantum Dot Coupled to Two Superconducting Leads

1998-02-02

arxiv.org/abs/cond-mat/9802008v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages Revtex, 2 Postscript figures, To be published in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.57.11891

We derive a formula for the current through an interacting quantum dot coupled to two supercouducting leads, using the non-equilibrium Green's function formalism. It is shown that the formula takes an especially simple form, when the Andreev reflections in the junctions are negligible because of large Coulomb repulsion in the dot. Our formalism provides a new framework to investigate many-body effects of mesoscopic systems in the presence of the superconducting leads. For an example, we describe the resonant tunneling of quasiparticles in the presence of strong Coulomb repulsion in the dot. Further, we discuss the boson assisted transport. Multiple sharp peaks are found in the current-voltage curve, which originate from the singularity of BCS density of states and the boson assisted tunneling.

Affiliated with

Also associated with

No associations

Rating

Transport through an Interacting Quantum Dot Coupled to Two Superconducting Leads 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 Transport through an Interacting Quantum Dot Coupled to Two Superconducting Leads, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transport through an Interacting Quantum Dot Coupled to Two Superconducting Leads will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-474641