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Thursday, March 10, 2011
12:30 PM - 2:00 PM
Theoretical Division Conference Room, TA-3, Building 123, Room 121.

Quantum Lunch

Quantum magnets: Bosonic behavior, condensation and magneto-electric effects

Vivien Zapf

In certain quantum magnets, the spin system can be mapped onto bosons, resulting in a variety of bosonic behaviors including a type of Bose-Einstein condensation, Bose glasses and boson crystallization. In this Quantum Lunch I will review recent experiments on Bose-Einstein Condensation in quantum magnets. I will discuss some interesting aspects such as how quantum fluctuations can be detected through their renormalization of the boson mass. Finally I will discuss the topological defects that can form in these materials, and magneto-electric/multiferroic effects.

Host: Wojciech H. Zurek,, 7-6837