Topological Order, Spin Liquid, and Quantum Critical Point
Apr 5, 2006
3:30PM to 4:30PM
Date(s) - 05/04/2006
3:30 pm - 4:30 pm
Title: Topological Order, Spin Liquid, and Quantum Critical Point
Speaker: Dr. Yong Baek Kim
Institute: University of Toronto
Location: ABB 102
We used to think that all the possible quantum ground states of interacting many particle systems can be classified by looking at the symmetry breaking patterns. In recent years, however, this old paradigm has met difficulties in explaining the behavior of the strongly interacting electron systems in complex materials. One of the alternative paradigms is the so-called topological order and perhaps the most elementary example is the quantum spin liquid states in frustrated magnets.
In this colloquium, I will attempt to explain what the topological order and quantum spin liquid states are, and when they likely to arise. A possible real world example near a putative quantum critical point will also be discussed.