Quantum information approach to a Bose–Einstein condensate in a tilted double-well system
Quantum information approach to a Bose–Einstein condensate in a tilted double-well system
We study the ground state properties of bosons in a tilted double-well system. We use fidelity susceptibility to identify the possible ground state transitions under different tilt values. For a very small tilt (for example $10^{-10}$), two transitions are found. For a moderate tilt (for example $10^{-3}$), only one transition …