Quantum over breakfast Quantum over breakfast

Spring 2010

March 1

Second meeting

Posted on 02/19/2010

Science and Technology I, Room 306, 9am-11am

Indu and Parag will open the discussion on topological Anderson insulators. The relevant papers are:     •  Topological Anderson Insulator,
    •  Theory of the Topological Anderson Insulator,
    •  Numerical study of the topological Anderson insulator in HgTe/CdTe quantum wells.

February 15

First meeting

Posted on 02/04/2010

We had brief reports by Erhai and Predrag on the freshest research developments communicated at the "Exotic Insulating States of Matter" conference which took place at Johns Hopkins University in January 2010.

Then, Mahmoud presented the new developments in topologically protected insulators with a few papers highlighting the superconductor properties gained by doping Bi2Se3 with Cu. We looked at the material structure, the resistivity and magnetization dependence on temperature, and STM images of a sample.

We focused on the results in this paper:
    •  Superconductivity in CuxBi2Se3 and its implications for pairing in the undoped topological insulator,
but also mentioned the following papers:
    •  Observation of unconventional band topology in a superconducting doped topological insulator, Cu(x)Bi2Se3: Topological Superconductor or non-Abelian superconductor?
    •  Odd-Parity Topological Superconductors: Theory and Application to Cu(x)Bi2Se3$