Concurrence and fidelity of a Bose–Fermi mixture in a one-dimensional optical lattice
Concurrence and fidelity of a Bose–Fermi mixture in a one-dimensional optical lattice
We study the ground-state fidelity and entanglement of a Bose-Fermi mixture loaded in a one-dimensional optical lattice. It is found that the fidelity is able to signal quantum phase transitions between the Luttinger liquid phase, the density-wave phase, and the phase separation state of the system, and the concurrence, as …