Condensed Matter Theory

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Percolation in Fock space as a proxy for many-body localisation

(2018)

Authors:

Sthitadhi Roy, JT Chalker, David E Logan
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On Linearized Nordström Supergravity in Eleven and Ten Dimensional Superspaces

JHEP07(2019)063

Authors:

S. James Gates, Jr., Yangrui Hu, Hanzhi Jiang, S. -N. Hazel Mak

Abstract:

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Exact solution of a percolation analogue for the many-body localisation transition

(2018)

Authors:

Sthitadhi Roy, David E Logan, JT Chalker
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Topological states in chiral active matter: dynamic blue phases and active half-skyrmions

(2018)

Authors:

Luuk Metselaar, Amin Doostmohammadi, Julia M Yeomans
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Exotic criticality in the dimerized spin-1 $XXZ$ chain with single-ion anisotropy

SciPost Physics Stichting SciPost 5:6 (2018) 059

Authors:

Satoshi Ejima, Tomoki Yamaguchi, Fabian Essler, Florian Lange, Yukinori Ohta, Holger Fehske

Abstract:

We consider the dimerized spin-1 XXZ chain with single-ion anisotropy D. In absence of an explicit dimerization there are three phases: a large-$D$, an antiferromagnetically ordered and a Haldane phase. This phase structure persists up to a critical dimerization, above which the Haldane phase disappears. We show that for weak dimerization the phases are separated by Gaussian and Ising quantum phase transitions. One of the Ising transitions terminates in a critical point in the universality class of the dilute Ising model. We comment on the relevance of our results to experiments on quasi-one-dimensional anisotropic spin-1 quantum magnets.
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