Figure 4: HOM dip.
From: Proposal for demonstrating the Hong–Ou–Mandel effect with matter waves
Normalized atom–atom correlation function 
between the two arms of the interferometer, characterizing the HOM effect as a function of the path-distinguishability angle θ. Error bars denote sampling error from ~30,000 stochastic simulations (see Methods). The atom counting bins are rectangular boxes with sides δkx=0.01k0 and δky,z=0.19k0, which approximate the widths of the momentum distribution of the initial trapped BEC.
