University
of Toronto
Physics Department
Condensed Matter and Quantum Optics
SPECIAL SEMINAR
University
of Toronto
| Speaker : | Dr. Ashvin Vishwanath
MIT |
| Topic : | Luttinger liquid Physics in dimensions higher than one |
| Time : | Friday, January 24, 2003 at 12:10 p.m. |
| Place : | Room MP408, Burton Tower, 60 St. George Street / 255 Huron Street |
Abstract
It is known that electrons confined to a line can form a Luttinger liquid, which differs in a fundamental way from the conventional Fermi liquid phase. For example, Luttinger liquids exhibit fractionalization: they posess excitations that carry a fraction of the electron's quantum numbers (the electron breaks up).
The possibility of generalizing this phase to higher dimensions will be
discussed, by coupling together an array of Luttinger liquid chains. The
result of one such recent effort is a phase called the Sliding Luttinger
Liquid, which retains Luttinger liquid like Physics in the direction of
the chains but is insulating in the transverse directions. The properties
of this phase and the origin of its stability will be described.
Local Host: Rashmi Desai
(416-978-5191) 