Proposed measurement of simultaneous particle and wave properties of electric current in a superconductor

• URL: http://arxiv.org/abs/2003.14049v2
• Date: Thu, 17 Sep 2020 07:11:25 GMT
• Title: Proposed measurement of simultaneous particle and wave properties of electric current in a superconductor
• Authors: Hrvoje Nikolic, Josip Atelj
• Abstract summary: We propose to measure the local macroscopic current passed through two slits in a superconductor. According to the theory based on the linearized Ginzburg-Landau equation for the macroscopic pseudo wave function, the streamlines of the measured current should have the same form as particle trajectories. By an explicit computation we find that the streamlines should show a characteristic wiggling, which is a consequence of quantum interference.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In a microscopic quantum system one cannot perform a simultaneous measurement of particle and wave properties. This, however, may not be true for macroscopic quantum systems. As a demonstration, we propose to measure the local macroscopic current passed through two slits in a superconductor. According to the theory based on the linearized Ginzburg-Landau equation for the macroscopic pseudo wave function, the streamlines of the measured current should have the same form as particle trajectories in the Bohmian interpretation of quantum mechanics. By an explicit computation we find that the streamlines should show a characteristic wiggling, which is a consequence of quantum interference.

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