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Relativistic Hydrodynamic Interpretation of de Broglie Matter Waves

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Abstract

We present a classical hydrodynamic analog of free relativistic quantum particles inspired by de Broglie’s pilot wave theory and recent developments in hydrodynamic quantum analogs. The proposed model couples a periodically forced Klein–Gordon equation with a nonrelativistic particle dynamics equation. The coupled equations may represent both quantum particles and classical particles driven by the gradients of locally excited Faraday waves. Exact stationary solutions of the coupled system reveal a highly nonlinear mechanism responsible for the self-propulsion of free particles, leading to the onset of unsteady motion. Although the model is essentially nonrelativistic, a stabilizing mechanism for any particle traveling close to the wave signaling speed emerges through the coupling with the wavefield. Consequently, inline particle oscillations comparable to de Broglie’s wavelength are realized through this fully-classical model, suggesting a new classical interpretation for the motion of relativistic quantum particles.

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  1. Faculty of Aerospace Engineering, Technion - Israel Institute of Technology, 3200003, Haifa, Israel

    Yuval Dagan

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Dagan, Y. Relativistic Hydrodynamic Interpretation of de Broglie Matter Waves. Found Phys 53, 20 (2023). https://doi.org/10.1007/s10701-022-00657-8

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