All Questions
Tagged with cpt-symmetry cpt-violation
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Are Hamiltonians CPT invariant?
I'm confused by the CPT theorem. It states (more or less) that a Lorentz invariant quantum field theory needs to be CPT invariant. But what does it actually mean for a QFT to be CPT invariant? It ...
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Is $CPT$ Symmetry already broken?
i came up this paper recently: https://doi.org/10.1140/epjc/s10052-020-08549-9 it describes the "CPT violation with decoherence effects" by Neutrinos.
This means CPT Symmetry is broken? And ...
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What is relation between CPT invariance & Lorentz invariance, and why mass of particle/antiparticle is different in CPT violation?
(1) I read that CPT theorem can be proved with Lorentz invariance. Also, CPT violation implies Lorentz violation.
Is CPT invariance equivalent with Lorentz invariance, or just one-side direction holds?...
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Does it mean time reverses if all particles were antiparticles and vice versa?
First of all, I'm not major in physics and the question might seems stupid, as I'm layman studying for my self-interest and I really don't know much about it. I only think it might open some ...
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Why is it important that the combination of charge, parity & time reversal symmetry not violated?
If looking for more particles or decays that violate CP symmetry can explain why there is so few antimatter in the known universe, I guess finding things that violate CPT symmetry might helps clear up ...
- 13k
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Does the weak force obey the CPT symmetry? How?
I have read that the weak force does not obey the charge symmetry, the parity symmetry, and the time reversal symmetry.
Then how does it obey the CPT symmetry?
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Could an antimatter-dominated end of universe fix CPT?
My question is about the apparent CPT violation of the observed universe, due to the imbalance of matter and antimatter, but first I have a motivating observation:
General relativity respects time ...
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How is this not a violation of CPT symmetry?
Imagine an electron and a positron, initially held stationary some distance apart at time $t=0$. There is an attractive force between them, so they will approach one another.
I am told that all the ...
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