Coherent quantum matter BEC =1+12+2y2cos(2/x) 112 matters 1-l or 1+1, makes no difference1 2 1 2 I I I I I kx = + + 2 cos(2 ) 1 2 1 2 I I I I =  or makes no difference!? Coherent quantum matter 𝐼1 𝐼2 matters!