Have the planck scales been proven to be true?

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SUMMARY

The quantization of space and time at the Planck length and Planck time has not been experimentally proven. While some physicists, including the discussed astronomy professor, theorize these as fundamental units, there is currently no consensus or experimental evidence to support this claim. The necessity of a quantum theory of gravity is highlighted as essential for understanding physics at these scales. The discussion emphasizes the lack of experimental validation and the importance of credible sources in scientific discourse.

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  • Understanding of quantum mechanics principles
  • Familiarity with the concepts of Planck length and Planck time
  • Knowledge of quantum gravity theories
  • Awareness of current experimental physics methodologies
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  • Research ongoing experiments related to quantized time and space
  • Explore quantum gravity theories, focusing on string theory and loop quantum gravity
  • Investigate the implications of Planck units in theoretical physics
  • Study the role of experimental validation in theoretical physics
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Physicists, students of theoretical physics, and anyone interested in the foundational aspects of quantum mechanics and gravity.

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has it been proven that space and time are quantized in the Planck length and Planck time?
 
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No. not at all.
 
my astronomy professor said that space and time are quantized.. the thing is.. i'd like to think that he wasn't talking out of his rear no offense to him at all. but i just don't see anyone else agreeing with him, which is why I'm asking

but if they aren't proven to be true, what ARE they? are they theorized fundamental units of space and time?
 
The significance of the Planck length and Planck time is that to understand physics at these length and time scales, we will need a quantum theory of gravity.
 
iScience said:
i just don't see anyone else agreeing with him

There are a lot of people that agree with him, but there are not any experiments that do (or that disagree). What is his level of training?
 
DrewD said:
There are a lot of people that agree with him, but there are not any experiments that do (or that disagree). What is his level of training?

what do you mean? he's a full professor.
 
I didn't know if he was just a lecturer or something. I am not an expert, but the last I heard there was only one proposed experiment to show that time is quantized and the funding was slow. I don't remember who, it was. I'll see if I can any info.
 
This question was answered in message #2. "But someone else said..." is not an acceptable counter-argument here, I'm afraid. There's no point in us arguing with a third party through the OP.
 

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