2015 CAP Congress / Congrès de l'ACP 2015

Session

M1-1 Topological States of Matter (DCMMP) / États topologiques de la matière (DPMCM)

M1-1

15 Jun 2015, 13:45

University of Alberta

Conveners

M1-1 Topological States of Matter (DCMMP) / États topologiques de la matière (DPMCM)

• Kaori Tanaka (University of Saskatchewan)

516. Nematic and non-Fermi liquid phases of systems with quadratic band crossing

Prof. Igor Herbut (Simon Fraser University)

15/06/2015, 13:45

Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)

Invited Speaker / Conférencier invité

I will review the recent work on the phases and quantum phase transitions in the electronic systems that feature the parabolic band touching at the Fermi level, the celebrated and well-studied example of which is the bilayer graphene. In particular, it will be argued that such three-dimensional systems are in principle unstable towards the spontaneous formation of the (topological) Mott...

608. Collective modes and interacting Majorana fermions in topological superfluids

Joseph Maciejko (University of Alberta)

15/06/2015, 14:15

Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)

Invited Speaker / Conférencier invité

Topological phases of matter are characterized by the absence of low-energy bulk excitations and the presence of robust gapless surface states. A prime example is the three-dimensional (3D) topological band insulator, which exhibits a bulk insulating gap but supports gapless 2D Dirac fermions on its surface. This physics is ultimately a consequence of spin-orbit coupling, a single-particle...

558. Dilute limit of an interacting spin-orbit coupled two-dimensional electron gas

Mr Joel Hutchinson (University of Alberta)

15/06/2015, 14:45

Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)

Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)

The combination of many-body interactions and Rashba spin-orbit coupling in a two-dimensional fermion system gives rise to an exotic array of phases in the ground state. In previous analyses, it has been found that in the low fermion density limit, these are nematic, ferromagnetic nematic, and spin-density wave phases. At ultra-low densities, the ground state favours the ferromagnetic nematic...

731. Andreev and Josephson transport in InAs nanowire-based quantum dots

Kaveh Gharavi (University of Waterloo)

15/06/2015, 15:00

Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)

Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)

Superconducting proximity effects are of fundamental interest and underlie recent proposals for experimental realization of topological states. Here we study superconductor-quantum dot- superconductor (S-QD-S) junctions formed by contacting short- channel InAs nanowire transistors with Nb leads. When the carrier density is low, one or more quantum dots form in the nanowire...