Figure 6
Bohmian trajectories and joint arrival time distributions of helium atoms in the two double-slit setup, with different detector characterizing constants \(\kappa\). The detectors are placed at \(Y_R=Y_L =40\, \upmu\)m, and is considered as an absorbing boundary. The slit distances are \(2l_y=20\,\upmu\)m, the initial wave packets’ dispersions are \(\sigma _x=\sigma _y=1 \, \upmu\)m, and the initial velocities are \(u_x=20\) m/s and \(u_y=0\). Panels (a–c) show the trajectories for \(\kappa =3\kappa _0\), \(\kappa =\kappa _0/3\), and \(\kappa =\kappa _0\), respectively. Panel (d) shows the trajectories without the detector back-effect, which are only truncated at the detector position. The colors of all trajectories are based on their arrival times on the screen and are labeled by color-bar in the unit of ms. Panels (e–h) show the joint arrival time distributions corresponding to the trajectories in panels (a–d), respectively.
