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Quantum interference is investigated within the complex quantum Hamilton–Jacobi formalism. As shown in a previous work [Phys. Rev. Lett. 102 (2009) 250401], complex quantum trajectories display helical wrapping around stagnation tubes and hyperbolic deflection near vortical tubes, these structures being prominent features of quantum caves in space–time Argand plots. Here, we further analyze the divergence...
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