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

AI Thread Summary
Energy is believed to have been quantized shortly after the Big Bang, specifically at or after the Planck time of 10^-43 seconds. This period marks the earliest symmetry breaking, suggesting that quantum mechanics governed the universe from this moment. Discussions indicate that the fundamental rules of quantum physics took effect immediately after this time. The conversation also touches on the types of particles that existed during the Planck time, although details on this are less defined. Overall, the consensus leans towards the early quantization of energy in the universe.
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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