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arxiv: 0705.4176 · v2 · submitted 2007-05-29 · ❄️ cond-mat.mes-hall

Bipartite entanglement entropy in fractional quantum Hall states

classification ❄️ cond-mat.mes-hall
keywords entanglementstatestatesbipartiteentropyfractionalhallparticles
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We present a detailed analysis of bipartite entanglement entropies in fractional quantum Hall (FQH) states, considering both abelian (Laughlin) and non-abelian (Moore-Read) states. We derive upper bounds for the entanglement between two subsets of the particles making up the state. We also consider the entanglement between spatial regions supporting a FQH state. Using the latter, we show how the so-called topological entanglement entropy of a FQH state can be extracted from wavefunctions for a limited number of particles.

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