Browse Physics

Joel E. Moore, Physics 2, 82 (2009) – Published October 5, 2009

Quantum Information Semiconductor Physics Mesoscopics Nanophysics

A theoretical analysis of recent experiments suggests that a key feature of a topological quantum computer—the unusual statistics of quasiparticles in the quantum Hall effect—may finally have been observed.

Matthew Grayson, Physics 2, 56 (2009) – Published June 29, 2009

Semiconductor Physics Mesoscopics

By exploiting the concept of particle-hole duality, one can realize a point junction between integer and fractional quantum Hall phases, which constitutes a crucial building block towards possible applications of the quantum Hall effect.

Fiona J. Burnell, Shivaji L. Sondhi, Physics 2, 49 (2009) – Published June 15, 2009

Magnetism Semiconductor Physics Mesoscopics

The fractional quantum Hall effect, thought to be special to two dimensions, may also flourish in three, providing a possible explanation for anomalies observed in certain 3D materials in high magnetic fields.

Published April 6, 2009

Mesoscopics Semiconductor Physics

Random disorder in topological insulators leads to an insulating phase reminiscent of one known for years in two-dimensional systems.

Published March 9, 2009

Mesoscopics Semiconductor Physics

The finding of one-dimensional, topologically protected conducting states on the surface of bismuth suggests the possibility of a quantum spin Hall effect in one dimension.

H. A. Fertig, Physics 2, 15 (2009) – Published February 23, 2009

Semiconductor Physics Mesoscopics Nanophysics

Measurements of the heat transport at the edges of two-dimensional electron systems appear to provide explanations about the quantum Hall state that have not been forthcoming via charge transport experiments.

Published September 8, 2008

Mesoscopics Semiconductor Physics

A new study is looking at how disorder affects the conducting states in a topological insulator—revealing one of many ways these unusual materials are different from conventional insulators.