Is BEC still considered a viable dark matter candidate.

In summary, there have been proposals that suggest dark matter could be ultra-light scalar particles in Bose-Einstein condensation phase, but this idea has not gained much traction. The currently popular dark matter models assume it to be a WIMP, a particle that interacts on the same scale as weak interactions. The Xenon100 experiment is expected to have enough sensitivity in the near future to either detect or rule out WIMPs, which could potentially lead to a reevaluation of the concept of dark matter and an increase in interest in alternative theories. Additionally, there are plans for a more powerful probe, Xenon 1t, which could further advance our understanding of dark matter.
  • #1
petergreat
267
4
There were proposals that dark matter might be ultra-light scalar particles in Bose-Einstein condensation phase, but the idea doesn't seem to have caught on. What are the advantages / disadvantages of this model?
 
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  • #2
The currently most popular dark matter models assume its some type of WIMP, i.e. a particle that interacts on the same scale as weak interactions. If this is so, we are getting very close to detecting it.

Especially the Xenon100 experiment should soon have enough sensitivity to either detect or rule out WIMPS. If they fail to see it, you can be sure the whole idea of dark matter will be rehashed, and other theories like the one you mention will attract more interest.
 
  • #3
Bill_K said:
Especially the Xenon100 experiment should soon have enough sensitivity to either detect or rule out WIMPS. If they fail to see it, you can be sure the whole idea of dark matter will be rehashed, and other theories like the one you mention will attract more interest.

What do you mean by "soon"? Couple of months?
Also, I hear Xenon 1t is planned as a more powerful probe, so Xenon100 shouldn't be the end of the story for WIMPs?
 

Related to Is BEC still considered a viable dark matter candidate.

1. What is BEC and how is it related to dark matter?

BEC stands for Bose-Einstein condensate, which is a state of matter where particles behave like waves and can occupy the same space. It is a possible candidate for dark matter because it is a cold and slow-moving substance, which matches some characteristics of dark matter.

2. Has BEC been ruled out as a viable dark matter candidate?

No, BEC is still considered a viable dark matter candidate. While it has not been definitively proven to be dark matter, it has not been ruled out either.

3. What evidence supports BEC as a potential dark matter candidate?

Some studies have shown that BEC can account for a significant portion of the observed dark matter in galaxies. Additionally, simulations have shown that BEC can form the large-scale structures that are observed in the universe.

4. What are the challenges to using BEC as a dark matter candidate?

One challenge is that it is difficult to detect BEC, as it does not interact with light or other forms of electromagnetic radiation. Additionally, there is still much that is unknown about the properties and behavior of BEC, making it difficult to definitively determine if it is dark matter.

5. Are scientists actively researching BEC as a dark matter candidate?

Yes, there is ongoing research and experimentation to better understand BEC and its potential as a dark matter candidate. Scientists are working to develop new detection methods and improve our understanding of the properties of BEC.

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