Long-Range Order and Directional Defect Propagation in the Nonreciprocal XY Model with Vision Cone Interactions.
Published version
Peer-reviewed
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Repository DOI
Change log
Authors
Loos, Sarah AM
Klapp, Sabine HL
Martynec, Thomas
Abstract
We study a two-dimensional, nonreciprocal XY model, where each spin interacts only with its nearest neighbors in a certain angle around its current orientation, i.e., its "vision cone." Using energetic arguments and Monte Carlo simulations, we show that a true long-range ordered phase emerges. A necessary ingredient is a configuration-dependent bond dilution entailed by the vision cones. Strikingly, defects propagate in a directional manner, thereby breaking the parity and time-reversal symmetry of the spin dynamics. This is detectable by a nonzero entropy production rate.
Description
Keywords
51 Physical Sciences, 5103 Classical Physics
Journal Title
Phys Rev Lett
Conference Name
Journal ISSN
0031-9007
1079-7114
1079-7114
Volume Title
130
Publisher
American Physical Society (APS)
Publisher DOI
Sponsorship
Horizon Europe UKRI Underwrite MSCA (EP/X031926/1)