Theory that most physicists believe that the decision

[CloIV]

what is the theory that most physicists
believe that the decisions that we didn't make
we live them on another life? something like that

please help

 

[Archosaur]

Sounds like "Sum over histories" to me.

 

[Bobbywhy]

Our entire universe rests on a turtle.

Caution, there may be irony in this post.

 

[arunma]

Uh, I think you might be talking about the "many worlds theory." But this isn't really a legitimate physics theory (in science a theory is a model that's been verified by numerous experiments). Honestly I never even learned about it in physics classes, I only know about it from popular literature, sci-fi, etc.

 

[Loren Booda]

The many-worlds theory is supposed to be consistent with other, more accepted quantum theories, but may have the advantage of continuity of reality, e.g., no wavefunction collapse, however at the expense of accumulating extreme intricacy.

Every measurement you make would be a choice between two universes, say one where an observed electron has spin up, and the other spin down. The number (n) of universes increases geometrically with the number of measurements (m), roughly:

2^m=n.​

 

[Pythagorean]

Uh, I think you might be talking about the "many worlds theory." But this isn't really a legitimate physics theory (in science a theory is a model that's been verified by numerous experiments). Honestly I never even learned about it in physics classes, I only know about it from popular literature, sci-fi, etc.

Many worlds is more of an interpretation of quantum mechanics than a theory itself. I believe it's the second most popular interpretation next to Copenhagen.

 

[Jimmy Snyder]

what is the theory that most physicists
believe that the decisions that we didn't make
we live them on another life?

To me it sounds more like a psychic on karma than a physicist on the many-worlds interpretation.

 

[arunma]

The many-worlds theory is supposed to be consistent with other, more accepted quantum theories, but may have the advantage of continuity of reality, e.g., no wavefunction collapse, however at the expense of accumulating extreme intricacy.

Every measurement you make would be a choice between two universes, say one where an observed electron has spin up, and the other spin down. The number (n) of universes increases geometrically with the number of measurements (m), roughly:

2^m=n.​

Something just occurred to me. You'd only get two universes when the Hilbert space is finite-dimensional. When your wavefunction exists in function space and can be decomposed into an infinite number of Fourier terms, you would literally get an infinite number of universes from making the measurement.

 

[Loren Booda]

Something just occurred to me. You'd only get two universes when the Hilbert space is finite-dimensional. When your wavefunction exists in function space and can be decomposed into an infinite number of Fourier terms, you would literally get an infinite number of universes from making the measurement.

[I should have written "exponentially" rather than "geometrically" in my previous post.]

Isn't an initial discrete measurement (e.g., that represented by a Dirac delta function) Fourier-decomposable into an infinity of Hilbert spatial dimensions, but only represents a finitude of "phase space" universal histories.

I'm really not sure what space Many-Worlds take place in.