Theory of strong inelastic co-tunneling

Details Theory of strong inelastic co-tunneling Theory of strong inelastic co-tunneling

Publishing date

1995-08-06

URL

arxiv.org/abs/cond-mat/9508018v1

Science

Physics

Field

Condensed Matter

Additional info

22 pages, 4 figures, uses REVTEX 3.0, epsf.sty and multicol.sty

Type

Scientific paper

Digital Object Identifier

10.1103/PhysRevB.52.16676

Abstract

We develop a theory of the conductance of a quantum dot connected to two leads by single-mode quantum point contacts. If the contacts are in the regime of perfect transmission, the conductance shows no Coulomb blockade oscillations as a function of the gate voltage. In the presence of small reflection in both contacts, the conductance develops small Coulomb blockade oscillations. As the temperature of the system is lowered, the amplitude of the oscillations grows, and eventually sharp periodic peaks in conductance are formed. Away from the centers of the peaks the conductance vanishes at low temperatures as $T^2$, in agreement with the theory of inelastic co-tunneling developed for the weak-tunneling case. Conductance near the center of a peak can be studied using an analogy with the multichannel Kondo problem. In the case of symmetric barriers, the peak conductance at $T\to 0$ is of the order of $e^2/\hbar$. In the asymmetric case, the peak conductance vanishes linearly in temperature.

Affiliated with

Also associated with

No associations

Rating

Theory of strong inelastic co-tunneling 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 Theory of strong inelastic co-tunneling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Theory of strong inelastic co-tunneling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-348523