Condensed Matter Theory

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Wilson Line Picture of Levin-Wen Partition Functions

(2010)

Authors:

FJ Burnell, Steven H Simon
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Using electrowetting to control interface motion in patterned microchannels

(2010)

Authors:

BM Mognetti, JM Yeomans
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CUDA simulations of active dumbbell suspensions

(2010)

Authors:

Victor Putz, Jorn Dunkel, Julia M Yeomans
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Disorder in a quantum spin liquid: flux binding and local moment formation

(2010)

Authors:

AJ Willans, JT Chalker, R Moessner
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Spin ice under pressure: symmetry enhancement and infinite order multicriticality

ArXiv 1003.4896 (2010)

Authors:

Ludovic DC Jaubert, JT Chalker, Peter CW Holdsworth, R Moessner

Abstract:

We study the low-temperature behaviour of spin ice when uniaxial pressure induces a tetragonal distortion. There is a phase transition between a Coulomb liquid and a fully magnetised phase. Unusually, it combines features of discontinuous and continuous transitions: the order parameter exhibits a jump, but this is accompanied by a divergent susceptibility and vanishing domain wall tension. All these aspects can be understood as a consequence of an emergent SU(2) symmetry at the critical point. We map out a possible experimental realisation.
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