In this case the probability of finding particle 1 at x1 and particle 2 at x2 is just the absolute square of the joint wave amplitude: \(\mathrm{P}\left(\mathrm{x}_{1},...In this case the probability of finding particle 1 at x1 and particle 2 at x2 is just the absolute square of the joint wave amplitude: P(x1,x2)=P1(x1)P2(x2).