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quant-ph2005★ 223 cited
An entanglement-area law for general bosonic harmonic lattice systems
M. Cramer, J. Eisert, M. B. Plenio +1
We demonstrate that the entropy of entanglement and the distillable entanglement of regions with respect to the rest of a general harmonic lattice system in the ground or a thermal…
quant-ph2004★ 390 cited
Entropy, entanglement, and area: analytical results for harmonic lattice systems
M. B. Plenio, J. Eisert, J. Dreissig +1
We revisit the question of the relation between entanglement, entropy, and area for harmonic lattice Hamiltonians corresponding to discrete versions of real free Klein-Gordon field…