171 citations · 851 across the 19 of their papers we have counts for
18 papers
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…
Maximally entangled fermions
Dirk-M. Schlingemann, Marco Cozzini, Michael Keyl +1
Fermions play an essential role in many areas of quantum physics and it is desirable to understand the nature of entanglement within systems that consists of fermions. Whereas the…
Tkachenko modes in a superfluid Fermi gas at unitarity
Gentaro Watanabe, Marco Cozzini, Sandro Stringari
We calculate the frequencies of the Tkachenko oscillations of a vortex lattice in a harmonically trapped superfluid Fermi gas. We use the elasto-hydrodynamic theory by properly acc…
Breathing modes of a fast rotating Fermi gas
Mauro Antezza, Marco Cozzini, Sandro Stringari
We derive the frequency spectrum of the lowest compressional oscillations of a 3D harmonically trapped Fermi superfluid in the presence of a vortex lattice, treated in the diffused…
The differential information-geometry of quantum phase transitions
P. Zanardi, P. Giorda, M. Cozzini
The manifold of coupling constants parametrizing a quantum Hamiltonian is equipped with a natural Riemannian metric with an operational distinguishability content. We argue that th…
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…