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Published September 12, 2013 | Submitted + Published
Journal Article Open

Exotic topological order in fractal spin liquids

Yoshida, Beni

Abstract

We present a large class of three-dimensional spin models that possess topological order with stability against local perturbations, but are beyond description of topological quantum field theory. Conventional topological spin liquids, on a formal level, may be viewed as condensation of stringlike extended objects with discrete gauge symmetries, being at fixed points with continuous scale symmetries. In contrast, ground states of fractal spin liquids are condensation of highly fluctuating fractal objects with certain algebraic symmetries, corresponding to limit cycles under real-space renormalization group transformations which naturally arise from discrete scale symmetries of underlying fractal geometries. A particular class of three-dimensional models proposed in this paper may potentially saturate quantum information storage capacity for local spin systems.

Additional Information

© 2013 American Physical Society. Received 1 July 2013; published 12 September 2013. I thank P. Shor, J. Preskill, X.-G. Wen, and S. Takayoshi for helpful discussion and comments. I acknowledge fruitful discussion with O. Buerschaper on RG transformations. I thank J. Haah, S. Michalakis, and A. Kubica for countless discussions at Caltech. I am supported by the David and Ellen Lee Postdoctoral fellowship. I acknowledge funding provided by the Institute for Quantum Information and Matter, an NSF Physics Frontiers Center with support of the Gordon and Betty Moore Foundation (Grants No. PHY-0803371 and No. PHY-1125565).

Attached Files

Published - PhysRevB.88.125122.pdf

Submitted - 1302.6248v4.pdf

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August 19, 2023
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