Thanks for the explanation. Very interesting. Is CP-symmetry the same thing as “time based symmetry”? (Not sure if that’s what it is called. I’ve heard there is some symmetry that means certain physical phenomenon behave the same even if time runs backwards, or something. I’m probably not doing a great job explaining)
No, time-based symmetry is the T-symmetry. It’s violated all the time because some events only run one way, never to the other; for example, if you burn sugar into carbon dioxide and water, you can’t simply “unburn” it by gathering the carbon dioxide and water together.
Then there’s the CPT-symmetry, that says that those violations of the T-symmetry should have a correspondent CP-symmetry violation, cancelling each other out exactly.
Thanks for the explanation. Very interesting. Is CP-symmetry the same thing as “time based symmetry”? (Not sure if that’s what it is called. I’ve heard there is some symmetry that means certain physical phenomenon behave the same even if time runs backwards, or something. I’m probably not doing a great job explaining)
No, time-based symmetry is the T-symmetry. It’s violated all the time because some events only run one way, never to the other; for example, if you burn sugar into carbon dioxide and water, you can’t simply “unburn” it by gathering the carbon dioxide and water together.
Then there’s the CPT-symmetry, that says that those violations of the T-symmetry should have a correspondent CP-symmetry violation, cancelling each other out exactly.