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hep-th2019
Topological order in matrix Ising models
Sean A. Hartnoll, Edward A. Mazenc, Zhengyan D. Shi
We study a family of models for an matrix worth of Ising spins . In the large limit we show that the spins soften, so that the partition function is…
cond-mat.str-el2019
Kondo effect due to a hydrogen impurity in graphene: a multichannel Kondo problem with diverging hybridization
Zheng Shi, Emilian M. Nica, Ian Affleck
We consider the Kondo effect arising from a hydrogen impurity in graphene. As a first approximation, the strong covalent bond to a carbon atom removes that carbon atom without brea…
cond-mat.mes-hall2019★ 17 cited
Magnon quantum anomalies in Weyl ferromagnets
Tianyu Liu, Zheng Shi
When subjected to parallel electric field and magnetic field , Weyl semimetals exhibit the exotic transport property known as the chiral anomaly due to the p…