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Sabine
Sabine

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Last week, we talked about some new developments, China's push for weather modification and the unexpectedly slow recovery of the ozone layer over the tropics. On Saturday,  we'll return to a timeless topic: Schrödinger's cat. Far from being an old idea, it's still giving physicists headaches today, and I tell you about some recent research on it.

 


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Please note I'm aware of weirdness of quantum mechanics. As a matter of fact we don't even see shapes, we only see wave length and wave length don't conway information about shapes. And since according to first law of thermo dynamics human isn't an entity, I mean us don't even exist; there is no one who would put together wave lengths together. The list of weirdness of the quantum mechanics can be very long. As a matter of fact that is why I subscribed to your channel; to find answers to it. Even though you don't believe in free will, your channel has a "missing amount of scepticism", I couldn't find on other channels. Thank you for your channel!

No need to apologize!

I'm sorry; if you think I misrepresented your views. I was trying to wrap my had around quantum mechanics; which if taken prima facie you and up with weird consequences that are difficult to talk away like you mentioned above. My apologies again.

First, as I explained in an earlier video, the term "superposition" in and by itself is meaningless. You need to say what it is a superposition of. Anything is a superposition of something. A dead cat is a superposition of "dead+alive" and "dead-alive", because you can add those (divide by two) and get "dead". So, your whole statement doesn't make sense. Second, once you have specified what superpositions you are talking about, a superposition may or may not cause superpositions or be caused by a superposition. Third, I don't know why you think this is relevant for Schrödinger's experiment. His point was just that if you take quantum mechanics a prima facie you end up with weird consequences that are difficult to talk away.

In know it isn't correct that the cause of a superposition is a superposition itself; that's my whole point. I don't claim that, but rather schrodinger's thought experiment sounds like that.

First, of course the notion of cause and effect is relative. A cause can itself have been caused by something else, etc, all the way back to the beginning of the universe. Second, it is not correct that the cause of a superposition must have been a superposition itself.

But the decaying atom is an effect and the release of the toxin is an effects also. In other words those effects should have their own superposition.

Well, the superposition is caused by the decaying atom which triggers the release of the toxin etc.

Thanks for your answer. My question is about cause and effect. Cat being alive is an effect; cat being dead is an effect too. In other words superposition is only collection of "effects". In that case I'm just wondering what cause is?

In Schrödinger's experiment, he considers only two, but in principle it could have arbitrarily many, even an infinity if you want. It doesn't really change much about the general problem of wave-function collapse though, so usually one talks about the two-state example for simplicity.

Does superposition of the Schrodinger's cat have only two possible outcomes or more?


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