Is it possible to do experiment on the Planck scale?

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Discussion Overview

The discussion centers on the feasibility of conducting experiments at the Planck scale, specifically at distances around 10^-35 meters. Participants explore whether such experiments are possible, the limitations posed by current technology, and the implications of quantum principles like the Heisenberg uncertainty principle on measurements at this scale.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • Some participants question the possibility of measuring at the Planck length, noting that current technology can only measure down to about 10^-18 meters, which is significantly larger than the Planck scale.
  • Others reference the Heisenberg uncertainty principle as a potential limiting factor in measuring phenomena at such small scales, suggesting that while some aspects might be observable, complete descriptions may be unattainable.
  • A participant studying quantum control theory expresses interest in how advancements in this field might contribute to future experiments at small scales, raising the question of whether observing Planck scale phenomena could ever be feasible.
  • There is a suggestion that focusing on specific measurements might allow for some observations, but this is contingent on the nature of what is being measured.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the possibility of conducting experiments at the Planck scale. There are competing views regarding the limitations imposed by technology and quantum principles.

Contextual Notes

Limitations include the current technological capabilities for measuring distances, the implications of the Heisenberg uncertainty principle, and the potential for future advancements in quantum control theory to influence experimental possibilities.

Ken Gallock
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Hi.
I was wondering if experiments on the Planck length (about 10-35 m) are possible or not.
If it is possible, what kind of experiment would that be?
If it's not, then what is the problem? Or what is need to be done?

Thanks.
 
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I don't know from experimentally point of view what happen but there is the Heisenberg principle as limit in the measure process ...
 
Ssnow said:
but there is the Heisenberg principle as limit in the measure process ...
depending on what you want to observe? Maybe some parts can work right?
 
Ken Gallock said:
I was wondering if experiments on the Planck length (about 10-35 m) are possible or not
Not with any currently imaginable technology. The smallest distances we've been able to measure are something around 10-18 meters, and that is fully 17 orders of magnitude away.
 
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Nugatory said:
Not with any currently imaginable technology. The smallest distances we've been able to measure are something around 10-18 meters, and that is fully 17 orders of magnitude away.

I'm studying quantum control theory. So I thought if it could help to improve those small-scale experiments in the future.
In principle, is it possible to observe 10-35 scale phenomenon?
Or there is some kind of principle that tells us it is impossible (such as Heisenberg's uncertainty principle...).
 
Ken Gallock said:
I'm studying quantum control theory. So I thought if it could help to improve those small-scale experiments in the future.

sure this will be usefull for future experiments, regarding the Heisenberg principle as you said you can concentrate your attention measuring exactly the space (for example) where you find a particle but in the other side you don't know the momentum so the velocity ... this doesn't permit you to have a complete description of the system ...
 
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before I replied to @tommyxu3 and I gave an answer to the original question...
 

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