×
Well done. You've clicked the tower. This would actually achieve something if you had logged in first. Use the key for that. The name takes you home. This is where all the applicables sit. And you can't apply any changes to my site unless you are logged in.

Our policy is best summarized as "we don't care about _you_, we care about _them_", no emails, so no forgetting your password. You have no rights. It's like you don't even exist. If you publish material, I reserve the right to remove it, or use it myself.

Don't impersonate. Don't name someone involuntarily. You can lose everything if you cross the line, and no, I won't cancel your automatic payments first, so you'll have to do it the hard way. See how serious this sounds? That's how serious you're meant to take these.

×
Register


Required. 150 characters or fewer. Letters, digits and @/./+/-/_ only.
  • Your password can’t be too similar to your other personal information.
  • Your password must contain at least 8 characters.
  • Your password can’t be a commonly used password.
  • Your password can’t be entirely numeric.
Enter the same password as before, for verification.
Login

Grow A Dic
Define A Word
Make Space
Set Task
Mark Post
Apply Votestyle
Create Votes
(From: saved spaces)
Exclude Votes
Apply Dic
Exclude Dic

Simulations of multi-field ultralight axion-like dark matter. (arXiv:2302.04302v2 [astro-ph.CO] UPDATED)

Click here to flash read.

As constraints on ultralight axion-like particles (ALPs) tighten, models with
multiple species of ultralight ALP are of increasing interest. We perform
simulations of two-ALP models with particles in the currently supported range
[arXiv:1307.1705] of plausible masses. The code we modified, UltraDark.jl, not
only allows for multiple species of ultralight ALP with different masses, but
also different self-interactions and inter-field interactions. This allows us
to perform the first three-dimensional simulations of two-field ALPs with
self-interactions and inter-field interactions. Our simulations show that
having multiple species and interactions introduces different phenomenological
effects as compared to a single field, non-interacting scenarios. In
particular, we explore the dynamics of solitons. Interacting multi-species
ultralight dark matter has different equilibrium density profiles as compared
to single-species and/or non-interacting ultralight ALPs. As seen in earlier
work [arXiv:2011.09510], attractive interactions tend to contract the density
profile while repulsive interactions spread out the density profile. We also
explore collisions between solitons comprised of distinct axion species. We
observe a lack of interference patterns in such collisions, and that resulting
densities depend on the relative masses of the ALPs and their interactions.

Click here to read this post out
ID: 1012; Unique Viewers: 0
Unique Voters: 0
Total Votes: 0
Votes:
Latest Change: March 17, 2023, 7:36 a.m. Changes:
/u/anonymous
Dictionaries:
Words:
Spaces:
Views: 788
CC:
No creative common's license
Comments: