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The BCS-BEC crossover and phase diagram for asymmetric nuclear superfluidwith pairings in isospin I = 0 and I = 1 channels are investigated at meanfield level, by using a density dependent nucleon-nucleon potential. Induced bythe in-medium nucleon mass and density dependent coupling constants,neutron-proton Cooper pairs could be in BEC state at sufficiently low density,but there is no chance for the BEC formation of neutron-neutron andproton-proton pairs at any density and asymmetry. We calculate the phasediagram in asymmetry-temperature plane for weakly interacting nuclearsuperfluid, and find that including the I = 1 channel changes significantly thephase structure at low temperature. There appears a new phase with both I = 0and I = 1 pairings at low temperature and low asymmetry, and the gapless statein any phase with I = 1 pairing is washed out and all excited nucleons arefully gapped.

BCS-BEC Crossover and Thermodynamics in Asymmetric Nuclear Matter with Pairings in Isospin I=0 and I=1 Channels