Fig. 6
From: Wavevector multiplexed atomic quantum memory via spatially-resolved single-photon detection
Result of the eigenmode decomposition for the number of modes. Dots represent the results from numerical decomposition, whereas the solid line is the simplified prediction of 0.565κ/2σ. Dotted gray lines correspond to values of σ x,y we obtain in our experimental setup and corresponding numbers of modes M x and M y
