493 citations · 1.6k across the 35 of their papers we have counts for
Showing 2006 · quant-phShow all
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quant-ph2006★ 152 cited
Quantum phase transitions and quantum fidelity in free fermion graphs
M. Cozzini, P. Giorda, P. Zanardi
In this paper we analyze the ground state phase diagram of a class of fermionic Hamiltonians by looking at the fidelity of ground states corresponding to slightly different Hamilto…
quant-ph2006★ 75 cited
Ground state fidelity and quantum phase transitions in free Fermi systems
P. Zanardi, M. Cozzini, P. Giorda
We compute the fidelity between the ground states of general quadratic fermionic hamiltonians and analyze its connections with quantum phase transitions. Each of these systems is c…