149 citations · 1.7k across the 59 of their papers we have counts for
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math-ph2007★ 33 cited
The von Neumann entropy asymptotics in multidimensional fermionic systems
S. Farkas, Z. Zimboras
We study the von Neumann entropy asymptotics of pure translation-invariant quasi-free states of d-dimensional fermionic systems. It is shown that the entropic area law is violated…
cond-mat.stat-mech2007★ 26 cited
Entanglement entropy in aperiodic singlet phases
Róbert Juhász, Zoltán Zimborás
We study the average entanglement entropy of blocks of contiguous spins in aperiodic XXZ chains which possess an aperiodic singlet phase at least in a certain limit of the coupling…
cond-mat.stat-mech2007★ 69 cited
Entanglement entropy of aperiodic quantum spin chains
F. Igloi, R. Juhasz, Z. Zimboras
We study the entanglement entropy of blocks of contiguous spins in non-periodic (quasi-periodic or more generally aperiodic) critical Heisenberg, XX and quantum Ising spin chains,…