English

Bouncing oil droplets, de Broglie's quantum thermostat and convergence to equilibrium

Quantum Physics 2018-11-14 v4

Abstract

Recently, the properties of bouncing oil droplets, also known as "walkers", have attracted much attention because they are thought to offer a gateway to a better understanding of quantum behaviour. They constitute indeed a macroscopic realization of wave-particle duality, in the sense that their trajectories are guided by a self-generated surrounding wave. The aim of this paper is to develop a phenomenological theory for the behavior of walkers in terms of de Broglie-Bohm and Nelson dynamics. We study in particular how modifications of the de Broglie pilot-wave theory, \`a la Nelson, affect the process of relaxation to quantum equilibrium, and prove an H-theorem for the relaxation to quantum equilibrium under Nelson dynamics. We compare the onset of equilibrium in the Nelson and de Broglie-Bohm approaches and we also propose some simple experiments by which one can test the applicability of our theory to the context of bouncing oil droplets.

Keywords

Cite

@article{arxiv.1807.00569,
  title  = {Bouncing oil droplets, de Broglie's quantum thermostat and convergence to equilibrium},
  author = {Mohamed Hatifi and Ralph Willox and Samuel Colin and Thomas Durt},
  journal= {arXiv preprint arXiv:1807.00569},
  year   = {2018}
}

Comments

The v3 is the initial version of our paper submited on April, 2 2018, to the journal "Chaos" for the "Hydrodynamic Quantum Analogs - special issue"