GAMP seminar

Title: Random loop models and quantum spin systems
Speaker: Daniel Ueltschi, Warwick University, UK.

Abstract: The random loop representations of quantum Heisenberg models allow to study these systems using probabilistic methods. They were introduced twenty years ago by Toth and Aizenman-Nachtergaele. I will review rigorous results and open questions. I will describe a probabilistic proof of exponential decay of transverse quantum correlations (joint work with J. Bjornberg).