151 citations · 387 across the 6 of their papers we have counts for
Showing 2003Show all
3 papers · 1 filter
cond-mat2003★ 151 cited
Integrability of a disordered Heisenberg spin-1/2 chain
L. F. santos
We investigate how the transition from integrability to nonintegrability occurs by changing the parameters of the Hamiltonian of a Heisenberg spin-1/2 chain with defects. Randomly…
quant-ph2003★ 97 cited
Entanglement versus chaos in disordered spin chains
L. F. Santos, G. Rigolin, C. O. Escobar
We use a Heisenberg spin-1/2 chain to investigate how chaos and localization may affect the entanglement of pairs of qubits. To measure how much entangled a pair is, we compute its…
quant-ph2003★ 83 cited
Entanglement in quantum computers described by the XXZ model with defects
L. F. Santos
We investigate how to generate maximally entangled states in systems characterized by the Hamiltonian of the XXZ model with defects. Some proposed quantum computers are described b…