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Spin lattices of walking droplets

APS Physics - 2017-11-14

Spin lattices of walking droplets

Pedro Saenz, MIT
Pucci Giuseppe , MIT
Alexis  Goujon, MIT
Tudor Cristea-Platon, MIT
Jörn Dunkel, MIT
John Bush, MIT

DOI: https://doi.org/10.1103/APS.DFD.2017.GFM.V0018



See other videos from the 2017 Gallery of Fluid Motion: https://gfm.aps.org/

Wayne Yue - 2018-05-20

amazing!

Gerard Hammond - 2019-12-28

This is one of my favourite quantum videos. Any followups?

Nina Persson - 2019-12-16

Wow!

Álvaro García - 2020-02-10

Here some arguments in favor of Bohm:
https://arxiv.org/abs/2001.07392

Alejandor - 2018-08-04

I guess this can come in handy to Spanish speakers: https://francis.naukas.com/2018/08/03/espectacular-video-de-redes-de-espines-simuladas-mediante-gotas-danzantes/

Andrew Ferg - 2019-09-17

The wells are not fences. They correspond to frequencies arising from interactions with the quantum vacuum and other particle /waves on the quantum scale, or electromagnetic field interactions on a macro scale, or gravitational interactions on an astronomical scale.

Rough Boulder - 2019-10-27

or gravitational interactions on a quantum scale, that would explain why light changes direction and slows down relative to a vacuum in glass, a sharp increase in gravity causing a strong pull toward the surface of the glass, and the time dilation caused by said difference in gravity causing the light to continue moving at C, but in a different relative frame compared to vacuum

Andrew Ferg - 2019-10-28

@Rough Boulder

Refraction of light is an electromagnetic phenomenon. Scale is important when discussing the different forces, although they do display apparent similarities (hence my comment about the wells in the experiment). The contribution of gravity at the microscopic level is insignificant in relation to the electromagnetic fields in the refraction of light, or other electromagnetic waves.

rotgertesla - 2018-04-22

So you are holding the dropplets inside a circular underwater fence? What happen if you slowly remove those fence once the lattice is created?

Billy Te - 2019-01-04

No. There is no fence. These particles are only interacting with the wave they create on the oil bath. They lock into lattices based on their relative phase of bounce.

tgf oftg - 2019-02-25

@Billy Te Could the fence be considered as some kind of dynamic pressure reflected from the well? There is no information in the video about shape of well or wells under latices.

안청응 - 2019-03-12

@Billy Te Although there is no fence it seems there is a sudden depth difference at the boundaries thus implementing a circular potential well. Check 0:27