Schrödinger's cat experiment, infinite worldlines

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Schrödinger\'s cat experiment, infinite worldlines

Schrödinger's cat is a seemingly paradoxical thought experiment devised by Erwin Schrödinger that attempts to illustrate the incompleteness of the theory of quantum mechanics when going from subatomic to macroscopic systems. The experiment proposes: A cat is placed in a sealed box. Attached to the box is an apparatus containing a radioactive nucleus and a canister of poison gas. The experiment is set up so that there is a 50% chance of the nucleus decaying in one hour. If the nucleus decays, it will emit a particle that triggers the apparatus, which opens the canister and kills the cat. According to quantum mechanics, the unobserved nucleus is described as a superposition (mixture) of "decayed nucleus" and "undecayed nucleus". However, when the box is opened the experimenter sees only a "decayed nucleus/dead cat" or an "undecayed nucleus/living cat."The question is: when does the system stop existing as a mixture of states and become one or the other? The purpose of the experiment is to illustrate that quantum mechanics is incomplete without some rules to describe when the wavefunction collapses and the cat becomes dead or remains alive instead of a mixture of both.

The many worlds interpretation accepts the wave function derived by quantum mechanics by assuming that there are, in fact, two simultaneous parallel worlds, one in which the cat is dead and one in which the cat is alive.

Now let us apply the concept of infinite worldlines to the Schrödinger’s cat experiment. When the observer opens the box, he finds either a dead or a live cat. Let us assume that the observer is allowed to see when the cat dies. The observer waits for the nucleus to decay while watching the cat for one hour. Since the nucleus decaying is based on probability, the death of the cat can occur at any second. We say it is second, but we do not know the exact time the nucleus decays. So in one worldline, the cat died in one minute. But that does not mean there are 60 worldlines. The cat could also die at 1 minute and 30 seconds, so seconds have to be taken into consideration. But still, it does not mean that there are 3600 worldlines, since an hour has 3600 seconds. May be the cat died at 1 minute and 30 milli seconds.

Theoretically speaking, the exact time the cat dies is unknown and the cat not dying in that one hour is another possibility. Here is where infinite worldlines come into picture. In that one hour, to spot the exact time the cat dies varies each time the experiment is repeated 10^-4, 10^-100, 10^-1000…..infinite.

Thus the interpretation of infinite worldlines could be an answer to incompleteness of the theory of quantum mechanics.

If person travels to the past, he can meet himself. If he ended in another more divergent worldline, he could not meet himself. The reason could be, his father married his mother sometime later than that in the original worldline. So there is a possibility that he can meet his brother or sister(born for his parents, but are not born in his original worldline) rather than meeting himself.

There could be another much more divergent Worldline where his Father married another woman, not his mother. That is much more divergent and a different son/daughter could be born for his father.

Thus the observer once born, lasts forever. There could be infinite possibilities in a person’s life that gives rise to different and infinite worldlines.
 
Re: Schrödinger\'s cat experiment, infinite worldli

Interesting experiments of Roger Penrose relating to this context can be found here.

http://www.dhushara.com/book/quantcos/penrose/penr.htm

But Penrose takes a new approach. He notes that as the various superposed states of a quantum-level system evolve over time, the distribution of matter and energy within them begins to diverge. At some level-intermediate between the quantum and classical realms-the differences between the superposed states become gravitationally significant; the states then collapse into the single state that physicists can measure. Seen this way, it is the gravitational influence of the measuring apparatus-and not the abstract presence of an observer that causes the superposed states to collapse.
 
Re: Schrödinger\'s cat experiment, infinite worldli

Penrose is the most prominent quantum field theorists who does not think MWI is true.

Among those who think MWI is true are Stephen Hawking and Nobel Laureates Murray Gell-Mann and Richard Feynman.

And Titor who also said that by 2034 it was pretty well established that the super-verse is made up of 10 dimensions, the four we see and six that curled just after the big bang.
 
Re: Schrödinger\'s cat experiment, infinite worldli

Penrose believes there are six dimensions.

He is not sure about the ultimate answer to the inconsistencies he points out in his experiments. May be if we apply the concept of infinite worldlines, its my opinion that it might get us closer to the answer.

“With apparently genuine humility, Penrose emphasizes that these ideas should not be called theories yet: be prefers the word "suggestions.' But throughout his conversation and writings, he seems to imply that someday humans (not computers) will discover the ultimate answer-to everything. Does he really believe that? Penrose mulls the question over for a moment. "I guess I rather do," he says finally "although perhaps that's being too pessimistic." Why pessimistic? Isn't that the hope of science? "Solving mysteries, or trying to solve them, is wonderful," he replies, "and if they were all solved that would be rather boring."”
 
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