56 citations · 63 across the 3 of their papers we have counts for
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cond-mat.stat-mech2008★ 56 cited
The fidelity approach to the Hubbard model
L. Campos Venuti, M. Cozzini, P. Buonsante +3
We use the fidelity approach to quantum critical points to study the zero temperature phase diagram of the one-dimensional Hubbard model. Using a variety of analytical and numerica…
cond-mat.stat-mech2006★ 171 cited
Quantum fidelity and quantum phase transitions in matrix product states
M. Cozzini, R. Ionicioiu, P. Zanardi
Matrix product states, a key ingredient of numerical algorithms widely employed in the simulation of quantum spin chains, provide an intriguing tool for quantum phase transition en…