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Results tagged with time-reversal-symmetry
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user 141764
The theoretical symmetry of physical laws under the transformation of time reversal, that is t -> -t.
11
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Causal explanation of Vaidman's group "Asking photons where they have been" experiment?
There is this surprising "Asking photons where they have been" PRL 2013 article about experiment where they are able to "ask photons" which mirrors they have visited: by vibrating each mirror with dif …
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3
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0
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Causality in CPT symmetry analogue of free electron laser (stimulated absorbtion)?
While 2nd law of thermodynamics emphasizes past->future time direction, CPT theorem says that at least microscopic physics has some symmetry between past and future. For example the Feynman-Stueckelbe …
- 1,058
5
votes
3
answers
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Are all processes time/CPT-reversible, e.g. measurement, stimulated emission, state preparat...
"The CPT theorem says that CPT symmetry holds for all physical phenomena, or more precisely, that any Lorentz invariant local quantum field theory with a Hermitian Hamiltonian must have CPT symmetry." …
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