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AMA | June 2023
Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas
The Problem With Time Reversal in Quantum Mechanics
Time reversal is often involves some massaging of the states. In quantum mechanics, you need to take the complex conjugate of the wave function as part of your time reversal operation. So when you say in the standard model, time symmetry has to be saved by CPT, I don't think that's the right way to think about it.
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