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Wess-Zumino-Witten Terms in Graphene Landau Levels

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arxiv 1411.5684 v3 pith:GJCTU4AG submitted 2014-11-20 cond-mat.str-el cond-mat.mes-hall

Junhyun Lee , Subir Sachdev This is my paper
classification cond-mat.str-elcond-mat.mes-hall
keywords graphenebilayerlandaulevelspresencequantumtermswess-zumino-witten
verification ladder T0 review T1 audit T2 compute T3 formal
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We consider the interplay between the antiferromagnetic and Kekul\'e valence bond solid orderings in the zero energy Landau levels of neutral monolayer and bilayer graphene. We establish the presence of Wess-Zumino-Witten terms between these orders: this implies that their quantum fluctuations are described by the deconfined critical theories of quantum spin systems. We present implications for experiments, including the possible presence of excitonic superfluidity in bilayer graphene.

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Cited by 2 Pith papers

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    A fuzzy-sphere exact diagonalization study shows the fIQH to bFQH transition is continuous, with emergent conformal symmetry and a single relevant singlet of scaling dimension Delta_S = 1.52(18).

  2. Lectures on insulating and conducting quantum spin liquids

    cond-mat.str-el 2025-12 unverdicted novelty 3.0 of 10

    The notes argue that the FL* state — small pockets plus a quantized spin-liquid anomaly — resolves the ADMR pocket and v_F >> v_Delta problems that defeated holon-metal and plain fermionic-parton theories of the cuprates.

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