Scaling of the conductance in a quantum wire

Details Scaling of the conductance in a quantum wire Scaling of the conductance in a quantum wire

2003-03-21

arxiv.org/abs/cond-mat/0303460v2

Europhys. Lett. 64, 769 (2003)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 5 figures included; contains new results for the conductance in the presence of contacts

Scientific paper

10.1209/epl/i2003-00624-x

The conductance G of an interacting nano-wire containing an impurity and coupled to non-interacting semi-infinite leads is studied using a functional renormalization group method. We obtain results for microscopic lattice models without any further idealizations. For an interaction which is turned on smoothly at the contacts we show that one-parameter scaling of G holds. If abrupt contacts are included we find power-law suppression of G with an exponent which is twice as large as the one obtained for smooth contacts and no one-parameter scaling. Our results show excellent agreement with the analytically known scaling function at Luttinger liquid parameter K=1/2 and numerical density-matrix renormalization group data.

Affiliated with

Also associated with

No associations

Rating

Scaling of the conductance in a quantum wire 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 Scaling of the conductance in a quantum wire, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scaling of the conductance in a quantum wire will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-153225