[fthomposon (OP)]

If the strongly interacting dark matter ripples when galaxy clusters collide then wouldn't it wave in a double slit experiment?

Strongly interacting massive particle

Strongly interacting massive particles (SIMPs) are hypothetical particles that interact strongly with ordinary matter, but could form the inferred dark matter despite this

Dark Matter's New Wrinkle: It May Behave Like Wavy Fluid

The mysterious dark matter that makes up most of the matter in the universe may behave more like wavy fluid

Hubble Finds Ghostly Ring of Dark Matter

Astronomers using NASA’s Hubble Space Telescope got a first-hand view of how dark matter behaves during a titanic collision between two galaxy clusters. The wreck created a ripple of dark matter, which is somewhat similar to a ripple formed in a pond when a rock hits the water.

The collision between the two galaxy clusters, the astronomers explained, created a ripple of dark matter that left distinct footprints in the shapes of the background galaxies. It's like looking at the pebbles on the bottom of a pond with ripples on the surface. The pebbles' shapes appear to change as the ripples pass over them. So, too, the background galaxies behind the ring show coherent changes in their shapes due to the presence of the dense ring. Although the invisible matter has been found before in other galaxy clusters, astronomers say it has never been detected to be so largely separated from the hot gas and the galaxies that make up galaxy clusters.

[Bill S]

If it is “similar to a ripple formed in a pond when a rock hits the water”, then I would guess that some form of “double slit” should produce an interference pattern.  Obviously, we couldn’t put a double slit in place, but it would be interesting to know if astronomers could identify any structures that would act as though they were double slits.

[chris]

What are the wavelengths of gravitational waves?

[Bill S]

"The wave-lengths of gravitational waves emitted in such merger events are typically of the same order as the dimension of the system. That is, for black holes with masses between 10 and 100 times the solar mass, wavelengths are typically a hundred to a thousand km – right in the range that LIGO is most sensitive."

https://www.google.co.uk/search?q=wavelength+of+gravitational+waves&oq=wavelength+of+gravitation&aqs=chrome.0.0j69i57j0.25821j0j1&sourceid=chrome&ie=UTF-8

[fthomposon (OP)]

If it is “similar to a ripple formed in a pond when a rock hits the water”, then I would guess that some form of “double slit” should produce an interference pattern.  Obviously, we couldn’t put a double slit in place, but it would be interesting to know if astronomers could identify any structures that would act as though they were double slits.

If galaxy cluster collisions are able to cause the strongly interacting dark matter to ripple, then a particle moving through and displacing the the strongly interacting dark matter would cause it to wave.

We already have evidence of the strongly interacting dark matter, it's what waves in a double slit experiment. In a double slit experiment the particle always travels through a single slit and the associated wave in the dark matter passes through both.