Stochastic geometry of the quantum Ising model

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• Jakob Bjornberg (Cambridge)
• Tuesday 18 May 2010, 16:30-17:30
• MR12, CMS, Wilberforce Road, Cambridge, CB3 0WB.

If you have a question about this talk, please contact Berestycki.

The classical Ising model is a well-studied model for phase transition. A particularly fruitful way to study this model is via its `graphical representations’, which allow us to use ideas and arguments from stochastic geometry and percolation theory. This talk will focus on graphical representations of the QUANTUM Ising model, a much less studied topic. In joint work with Geoffrey Grimmett, we were able to use graphical representations to deduce fundamental facts about the quantum Ising model. Most notable of these are sharpness of the phase transition in all dimensions, and bounds on some critical exponents.

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