Tunable pseudogap Kondo effect and quantum phase transitions in Aharonov-Bohm interferometers

Details Tunable pseudogap Kondo effect and quantum phase transitions in Aharonov-Bohm interferometers Tunable pseudogap Kondo effect and quantum phase transitions in Aharonov-Bohm interferometers

2009-01-16

arxiv.org/abs/0901.2475v2

Phys. Rev. Lett. 102 166806 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Published version

Scientific paper

10.1103/PhysRevLett.102.166806

We study two quantum dots embedded in the arms of an Aharonov-Bohm ring threaded by a magnetic flux. The system can be described by an effective one-impurity Anderson model with an energy- and flux-dependent density of states. For specific values of the flux, this density of states vanishes at the Fermi energy, yielding a controlled realization of the pseudogap Kondo effect. The conductance and transmission phase shifts reflect a nontrivial interplay between wave interference and interactions, providing clear signatures of quantum phase transitions between Kondo and non-Kondo ground states.

Affiliated with

Also associated with

No associations

Rating

Tunable pseudogap Kondo effect and quantum phase transitions in Aharonov-Bohm interferometers 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 Tunable pseudogap Kondo effect and quantum phase transitions in Aharonov-Bohm interferometers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tunable pseudogap Kondo effect and quantum phase transitions in Aharonov-Bohm interferometers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-127434