Comment on “Phase separation in a two-species Bose mixture”
Comment on “Phase separation in a two-species Bose mixture”
In an article in 2007, Mishra et al. [Phys. Rev. A 76, 013604 (2007)] investigated the two-component Bose-Hubbard model using the numerical density-matrix renormalization-group procedure. In the regime of interspecies repulsion ${U}^{ab}$ larger than the intraspecies repulsion $U$, they found a transition from a uniform miscible phase to phase separation …