Miscibility of binary Bose-Einstein condensates with p-wave interaction

We investigate the ground -state phase diagram of a binary mixture of Bose-Einstein condensates (BECs) with competing interspecies sand p -wave interactions. Exploiting a pseudopotential model for the l = 1 partial wave, we derive an extended Gross-Pitaevskii (GP) equation for the BEC mixture that incorporates both sand p -wave interactions. Based on it, we study the miscible -immiscible transition of a binary BEC mixture in the presence of interspecies p -wave interaction, by combining numerical solution of the GP equation and Gaussian variational analysis. Our paper uncovers a dual effect-to either enhance or reduce miscibility-of positive interspecies p -wave interaction, which can be precisely controlled by adjusting relevant experimental parameters. By completely characterizing the miscibility phase diagram, we establish a promising avenue towards experimental control of the miscibility of binary BEC mixtures via high partial -wave interactions.