![[Search]](/static/images/search.gif){kind=small}
![[A-Z Index]](/static/images/az.gif){kind=small}
![[Contact]](/static/images/contact.gif){kind=small}
![[University of Cambridge]](/static/images/identifier2.gif){kind=small}
![[Talks.cam]](/static/images/talkslogosmall.gif)
Thursday 21 May 2009, 14:15-15:15
Kondo physics in multilevel quantum dots.
- đ¤ Speaker: Prof. David Logan, Theoretical Chemistry, Oxford University
- đ Date & Time: Thursday 21 May 2009, 14:15 - 15:15
- đ Venue: TCM Seminar Room, Cavendish Laboratory
Abstract
The low-energy behaviour of quantum dots coupled to metallic leads is commonly associated with a single ‘active’ dot level, and hence with the spin-1/2 Kondo efect. But this is not ubiquitous: if several dot levels are relevant to charge transport, higher spin Kondo efects may arise, and have been observed experimentally. This talk will discuss a rather general model for a two-level correlated quantum dot, studied largely via RG. Particular consideration will be given to the spin-1 and spin-1/2 Kondo regimes which occur on sweeping the dot levels through the Fermi level by tuning a gate voltage; to the nature of the resultant quantum phase transition between the regimes arising in a two-lead, one-channel setup; and to comparison to experiment. Time permitting, I may also discuss some aspects of SU(4) Kondo physics in carbon nanotube quantum dots.
Series This talk is part of the Theory of Condensed Matter series.
Included in Lists
- All Cavendish Laboratory Seminars
- All Talks (aka the CURE list)
- Centre for Health Leadership and Enterprise
- Combined TCM Seminars and TCM blackboard seminar listing
- Featured lists
- few29
- Lennard-Jones Centre external
- ME Seminar
- Neurons, Fake News, DNA and your iPhone: The Mathematics of Information
- PMRFPS's
- School of Physical Sciences
- TCM Seminar Room, Cavendish Laboratory
- Theory of Condensed Matter
- Thin Film Magnetic Talks
Note: Ex-directory lists are not shown.