Was energy already quantized 10^-43 seconds after the Big Bang?

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SUMMARY

Energy became quantized immediately after the Big Bang, specifically at T = 0 + Planck time (10^-43 seconds). During this period, the fundamental rules of quantum physics governed the universe, indicating that energy was already discrete. The discussion highlights the significance of early symmetry breaking in the context of quantum mechanics, affirming that quantum principles were in effect from the very beginning of the universe.

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CarlosLara
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Good evening. I am wondering if energy has always been quantized. I read that the shortest time after the Big Bang (the time it took for gravity to separate first) was 10^-43 seconds. At these moments of earliest symmetry breaking, was energy already discrete, or did quantum mechanics emerge some time afterwards?

Thank you in advance.
 
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This should probably be moved to the quantum physics forum, but, the short answer is after T = 0 + Planck time, the rules of quantum physics appear to be in charge of the universe.
 
Chronos said:
This should probably be moved to the quantum physics forum, but, the short answer is after T = 0 + Planck time, the rules of quantum physics appear to be in charge of the universe.

Which particles existed at the Planck time?
 

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