​Many Worlds and assumptions ​(was: why are the laws of physics stable)

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John Clark

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Jul 12, 2021, 6:13:43 AM7/12/21
to 'Brent Meeker' via Everything List
On Sun, Jul 11, 2021 at 4:48 PM 'Brent Meeker' via Everything List <everyth...@googlegroups.com> wrote:

> and have a relatively small number of degrees of freedom.
 
>> That is nonsense, the entire advantage of Quantum Computers is that they have vastly more degrees of freedom than a conventional computer. To describe the state of a n bit conventional processor you'd need n real numbers; but to describe the state of a n qubit Quantum Computer you'd need 2^n complex numbers, and thanks to the Born rule, you need 2 complex numbers to define a unique real number, so that means a n qubit Quantum Computer has 2*(2^n) -2 real degrees of freedom. The -2 is there because you have to remove 2 to normalized phase and amplitude.
 
> You seemed to have missed the conditional "...that can be quantum erased".

You are claiming that an intelligent Quantum Computer cannot use quantum erasure, so you must invoke new fundamental laws of physics, for which there is currently ZERO evidence, for your idea to work. On the other hand, Many Worlds does not need any new laws of physics to be viable, the current ones work just fine, and the only assumption it makes is that Schrodinger's equation means what it says.

John K Clark    See what's on my new list at  Extropolis

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