On Sun, Jul 11, 2021 at 10:36 AM smitra <[email protected]> wrote: > On 11-07-2021 01:05, Bruce Kellett wrote: > > On Sun, Jul 11, 2021 at 1:18 AM smitra <[email protected]> wrote: > > > >> On 10-07-2021 07:58, Bruce Kellett wrote: > >>> > >>> Neither of your analyses actually explain the observed behaviour. > >> > >> It does so, otherwise the experiment would have proven that QM is > >> invalid. > > > > So, in your opinion, the quantum mechanical analysis given in the > > paper is wrong. > > It is correct, it's just that your conclusion about the MWI based on > that paper is incorrect. Escaping infrared photons and the decoherence > this causes are totally irrelevant. Whether or not an interference > pattern can be detected is not relevant to the question of whether or > not a superposition exists when we know that it exist and it has no > decohered.
The question is not whether or not there is a superposition. The question is whether or not the superposition is coherent. If the balls are entangled with photons that have escaped, the superposition has decohered and is no longer coherent. Loss of coherence means that there can be no interference pattern. It is not just that it is not visible -- it simply no longer exists. Coherence can only be restored if the escaping information is quantum erased. The escaping photons are part of the total system. If you ignore this entanglement, the remaining system is a mixed state. Bruce -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/CAFxXSLSDT0WQ%2BMpBJ-nH-waNX506m8umsoG%3DS28y3GAJfK%2Bbug%40mail.gmail.com.
