69 citations · 127 across the 2 of their papers we have counts for
3 papers
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,…
math-ph2005
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…
quant-ph2004★ 58 cited
Entanglement in the XX spin chain with an energy current
V. Eisler, Z. Zimboras
We consider the ground state of the XX chain that is constrained to carry a current of energy. The von Neumann entropy of a block of neighboring spins, describing entanglement…