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University of Cambridge > Talks.cam > TCM Blackboard Series > Phase transitions in highly constrained spin systems: Ordering from the Coulomb phase.
![]() Phase transitions in highly constrained spin systems: Ordering from the Coulomb phase.Add to your list(s) Download to your calendar using vCal
If you have a question about this talk, please contact Joe Bhaseen. Many classical, geometrically frustrated antiferromagnets have macroscopically degenerate ground states. In a class of three-dimensional systems, the set of degenerate ground states has power-law correlations and is an example of a Coulomb phase, with long-wavelength fluctuations described by a Gaussian solenoidal field. A perturbation applied to the system can lift the degeneracy and induce a phase transition. Because of the power-law correlations (or, equivalently, the solenoidal nature of the degrees of freedom), phase transitions of this kind are unusual. In this seminar, I aim to give a straightforward introduction to the area and to discuss these phase transitions from several points of view. This talk is part of the TCM Blackboard Series series. This talk is included in these lists:
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