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Mechanics Research Communications

Discrete dynamical model for the hydrodynamic analog of a quantum mirage

Gonzalo Ferrandez-Quinto, Aminur Rahman

Published Nov 22, 2023• 1 citation
Publisher
DOI
10.1016/j.mechrescom.2023.104219

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Recently discrete dynamical models of walking droplet dynamics have allowed for fast numerical simulations of their horizontal chaotic motion and consequently the long-time statistical distribution of the droplet position. We develop a discrete model for walkers on an elliptical corral with two dominant eigenmodes. These eigenmodes are excited periodically with each having random, but correlated, weights. At each iteration the model computes the horizontal propulsion of the droplet due to impacts with the fluid bath. The propulsion is calculated based on the interaction of the droplet with the wavefield produced by the eigenmode excitations. We record the long-time statistics, and incredibly for such a simple model, they are qualitatively similar to that of experiments.
The rapid development of modern computing has historically focused on the manipulation of discrete logic states—first through classical binary transistors (0 and 1), and more recently through the probabilistic superposition of qubits. While discrete-state quantum computing offers profound theoretical advantages, the practical engineering of these systems faces significant challenges, most notably environmental decoherence and extreme cryogenic cooling requirements. This paper proposes a complementary analog computing architecture inspired by the Rapid Alignment Kinematic Theory of Spin (RAKTS). Rather than attempting to isolate discrete probability states from a noisy environment, this architecture embraces the environment as a continuous computational medium. By modeling information not as probabilistic amplitudes, but as continuous geometric "Vector Nodes" subject to physical hydrodynamic drag (Landau-Lifshitz damping), we outline the theoretical foundation for an Analog Topological Processor. We demonstrate that non-linear environmental interactions, typically modeled as destructive decoherence in quantum systems, can function as a stabilizing geometric funnel to drive the system into robust logical attractors at room temperature. Finally, we establish the Turing completeness of the framework by simulating a universal Kinematic NAND Gate driven by background field bias and fluid-dynamic resistance, presenting a noise-resilient alternative for next-generation analog hardware accelerators. Keywords Analog Computing, Kinematic Logic Gate, Hydrodynamic Drag Computation, Continuous-Variable Processor, Turing-complete Analog Hardware, Decoherence-free Logic, Field Medium, RAKTS Additional Info Repository: https://github.com/rt20bg/Anastasov_Theory