405 citations · 2.8k across the 45 of their papers we have counts for
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cond-mat.stat-mech2006★ 101 cited
Entanglement entropy in collective models
J. Vidal, S. Dusuel, T. Barthel
We discuss the behavior of the entanglement entropy of the ground state in various collective systems. Results for general quadratic two-mode boson models are given, yielding the r…
cond-mat.stat-mech2006★ 102 cited
Entanglement Entropy beyond the Free Case
T. Barthel, S. Dusuel, J. Vidal
We present a perturbative method to compute the ground state entanglement entropy for interacting systems. We apply it to a collective model of mutually interacting spins in a magn…
cond-mat.stat-mech2006★ 186 cited
Entanglement scaling in critical two-dimensional fermionic and bosonic systems
Thomas Barthel, Ming-Chiang Chung, Ulrich Schollwoeck
We relate the reduced density matrices of quadratic bosonic and fermionic models to their Green's function matrices in a unified way and calculate the scaling of bipartite entangle…