Bouncing Drops - is there a relationship to Quantum Mechanics?
Mogens T. Levinsen, NBI
Some years ago Y. Couder and E. Fort published some investigations
on liquid drops "walking" on a liquid surface. The drops surf on the
wave they themselves have created, giving a kind of system with a
particle on a guiding wave analogous to de Broglie's pilot wave theory
of Quantum Mechanics.
Several quantum-like behaviors of the drops as for instance tunneling
have been observed and in 2006 Couder and Fort published a thought
provoking paper claiming the existence of Q.M. like interference
patterns in the for Quantum Mechanics crucial double-slit experiment.
I will discuss our own attempts to reproduce the results claimed,
which have completely failed, and give a critique of various
shortcomings and the statistics involved in Couder and Fort's experiment.
Couder and Fort, Phys. Rev. Lett. 97, 154101 (2006).
Anders Andersen, Jacob Madsen, Christian Reichelt, Sonja Rosenlund Ahl,
Benny Lautrup, Clive Ellegaard, Mogens T. Levinsen, and Tomas Bohr,
PHYSICAL REVIEW E 92, 013006 (2015).