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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…
math-ph2005★ 16 cited
On the sharpness of the zero-entropy-density conjecture
S. Farkas, Z. Zimboras
The zero-entropy-density conjecture states that the entropy density, defined as the limit of S(N)/N at infinity, vanishes for all translation-invariant pure states on the spin chai…