What are the latest developments in Bosenova and EBC research?

  • Context: Graduate 
  • Thread starter Thread starter Martin0001
  • Start date Start date
  • Tags Tags
    News
Click For Summary

Discussion Overview

The discussion revolves around recent developments in Bosenova and EBC (Bose-Einstein Condensate) research, focusing on the peculiar behaviors observed in these systems, particularly regarding the phenomenon of "missing atoms," the nature of explosions during collapse, and the potential existence of remnants post-collapse.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants inquire about the current understanding of "missing atoms" in Bosenova phenomena and whether physicists can account for them now.
  • Questions are raised regarding the nature of the collapse and rebound process, suggesting that disturbances may lead to a loss of the bosonic structure of the collapsing sample.
  • There is curiosity about the source of the energy during the explosion associated with the collapse.
  • Participants speculate about the possibility of a "remnant" being left after the collapse and what it might be composed of.
  • One participant references an experimental paper indicating that "anomalies" in Bosenova are attributed to three-body processes, although access to the full article is limited due to paywalls.
  • There are discussions about the densities achieved during the collapse, with estimates ranging from 10 to 1000 times the normal density of rubidium, and inquiries into the technical feasibility of such experiments.
  • Participants express interest in the potential phenomena that could be observed if small amounts of matter could be cooled to low temperatures.

Areas of Agreement / Disagreement

Participants express a range of inquiries and speculations without reaching a consensus on the nature of the phenomena discussed. Multiple competing views and uncertainties remain regarding the specifics of the collapse and the implications of the findings.

Contextual Notes

Limitations include the dependence on the definitions of terms like "remnant" and "collapse," as well as unresolved questions about the technical feasibility of achieving the proposed densities in experiments.

Martin0001
Messages
93
Reaction score
32
Peculiar behavior of Bose Einstein Condensates known as Bosenova is known for about 15 years.
Any new developments?

Can physicists account now for "missing atoms"?
Is it a simply collapse & rebound, the latter due perhaps due to disturbances resulting in loss of bosonic structure of collapsing sample?

From where a tiny energy of explosion is originating?

Are there any non crackpot speculations about possibility that some sort of "remnant" might be left and if so, what it is made of?

Did anyone attempted to estimate density of most compressed stage of the process or a density of remnant (if exists)?
 
Physics news on Phys.org
There was a good experimental paper a few years ago that showed that the "anomalies" were due to three-body processes:

P. A. Altin, G. R. Dennis, G. D. McDonald, D. Döring, J. E. Debs, J. D. Close, C. M. Savage, and N. P. Robins
Collapse and three-body loss in a 85Rb Bose-Einstein condensate
Phys. Rev. A 84, 033632 (2011)
http://arxiv.org/abs/1108.2561
 
  • Like
Likes   Reactions: bhobba
Thanks,
Full article is unfortunately behind paywall but at least abstract was available to read.

I still wonder what densities was locally produced before system broke down.
Anything in range 10-1000 X of normal density of rubidium seems to be a reasonable guess.
Wonder what are limits of such density gains and what scale of experiment is technically feasible?
If we could cool say only 1ug of matter to these low temperatures, we could observe some incredibly interesting phenomena.
 
Martin0001 said:
Thanks,
Full article is unfortunately behind paywall but at least abstract was available to read.

I still wonder what densities was locally produced before system broke down.
Anything in range 10-1000 X of normal density of rubidium seems to be a reasonable guess.
Wonder what are limits of such density gains and what scale of experiment is technically feasible?
If we could cool say only 1ug of matter to these low temperatures, we could observe some incredibly interesting phenomena.

The arxiv version is free! Thanks for pointing out this topic.

[Mentor's note: Off-topic observation about the economics and theology of paywalls removed]
 
Last edited by a moderator:

Similar threads

Graduate MOND Theory Primer: Stacy McGaugh's Research Program Explored
  • · Replies 11 ·
Replies
11
Views
5K
Graduate What is the ultimate fate of a massive star in space?
  • · Replies 1 ·
Replies
1
Views
4K
Undergrad Some questions about Cosmic Inflation
  • · Replies 4 ·
Replies
4
Views
5K
April Fool's Physics Papers 2026
  • · Replies 2 ·
Replies
2
Views
595