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quant-ph2009★ 4 cited
Phase diagram of imbalanced strongly interacting fermions on a one-dimensional optical lattice
Alberto Anfossi, Luca Barbiero, Arianna Montorsi
We show that the Hubbard Hamiltonian with particle-assisted tunneling rates --recently proposed to model a fermionic mixture near a broad Feshbach resonance-- displays a ground sta…
quant-ph2008★ 7 cited
Momentum-space analysis of multipartite entanglement at quantum phase transitions
Alberto Anfossi, Paolo Giorda, Arianna Montorsi
We investigate entanglement properties at quantum phase transitions of an integrable extended Hubbard model in the momentum space representation. Two elementary subsystems are reco…