Phase diagram of a Bose-Fermi mixture in a one-dimensional optical lattice in terms of fidelity and entanglement
Phase diagram of a Bose-Fermi mixture in a one-dimensional optical lattice in terms of fidelity and entanglement
Department of Physics, Fudan University, Shanghai 200433, China(Dated: February 1, 2008)We study the ground-state phase diagram of a Bose-Fermi mixture loaded in a one-dimensional optical latticeby computing the ground-state fidelity and quantum entanglement. We find that the fidelity is able to signalquantum phase transitions between the Luttinger liquid phase, the …