What are the latest developments in Bosenova and EBC research?

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In summary, physicists have been studying the peculiar behavior of Bose Einstein Condensates, known as Bosenova, for about 15 years. Recently, there have been developments in understanding the phenomenon and the possibility of "missing atoms." The process is believed to be a collapse and rebound, possibly due to disturbances that cause a loss of bosonic structure. The source of the tiny energy of explosion is still unknown. There have been speculations about the existence of a remnant and what it might be made of, but no concrete evidence or estimations have been made. However, a recent experimental paper showed that the anomalies in the process were due to three-body processes. The full article is behind a paywall, but the arxiv version is
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Martin0001
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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)?
 
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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
 
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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.
 
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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]
 
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1. What is Bosenova and EBC?

Bosenova and EBC (Expansion by Condensation) are two phenomena that occur in ultracold atomic gases, specifically Bose-Einstein condensates. Bosenova is a type of explosion that happens when the condensate is rapidly expanded, while EBC is the formation of a new condensate when a dense gas is suddenly expanded.

2. What causes Bosenova and EBC?

Bosenova and EBC are caused by the sudden change in the trapping potential of the condensate, resulting in a rapid expansion. This can be achieved by changing the magnetic field or laser beams that are used to trap the atoms.

3. Why are Bosenova and EBC important in scientific research?

Bosenova and EBC allow scientists to study the properties and behavior of ultracold atomic gases, which can provide insights into quantum physics and other fundamental aspects of nature. Furthermore, these phenomena have potential applications in technologies such as precision measurement and quantum computing.

4. Have there been any recent developments or news related to Bosenova and EBC?

Yes, there have been several recent developments in the study of Bosenova and EBC. In 2019, researchers at MIT created a new type of Bosenova explosion that is more efficient and controllable. Additionally, in 2020, a team at the University of Chicago successfully created a stable EBC for the first time, which could lead to further advancements in this area of research.

5. What are the potential future directions for studying Bosenova and EBC?

Some potential future directions for studying Bosenova and EBC include exploring their applications in quantum technology, such as creating better atomic clocks or quantum computers. Additionally, researchers may continue to investigate the fundamental properties and behaviors of these phenomena, which could lead to a better understanding of quantum mechanics and other fundamental principles of nature.

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