Phase Estimation Sensitivity in Two-Species Bose-Einstein Condensate

We investigate phase estimation sensitivity two-species Bose-Einstein condensate with nonlinear interatomic interactions and Josephson-like tunneling. Numerical analyzes of quantum Fisher information and phase estimation sensitivity are presented. Quantum Fisher information and phase estimation sensitivity are independent of Josephson-like coupling and they are insensitive to interatomic interaction. The better values of quantum Fisher information and phase estimation sensitivity can be achieved by increasing the population difference of atoms in two condensates.