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cowxfarm
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Homework Statement
why they created m-theory?? or why did they find m-theory and how does it help us..
If I'm not mistaken, when I read Hawking's book "The Universe in a Nutshell" some years back, this is what he suggested, i.e., the bulk of dark matter may be due to the effects of high frequency gravitational waves from another universe that may, unlike light waves, be able to penetrate the miniscule dimensions of the higher order dimensions (expounded by M-Theory) of our space-time universe. I don't know what current thinking says, though.Unbeliever said:What I'm curious about is: if M-theory is correct, could gravity "leaking" from other membrane universe to ours account for what we think of as dark matter?
If other universes' gravity can make itself felt in our universe, maybe galaxies and clusters in the "nearer" universes can have an effect on ours, since, presumably, the galaxies in the clusters of nearby universes would be in aproximately the same "locations".
PhanthomJay said:If I'm not mistaken, when I read Hawking's book "The Universe in a Nutshell" some years back, this is what he suggested, i.e., the bulk of dark matter may be due to the effects of high frequency gravitational waves from another universe that may, unlike light waves, be able to penetrate the miniscule dimensions of the higher order dimensions (expounded by M-Theory) of our space-time universe. I don't know what current thinking says, though.
Unbeliever said:I'm curious, does M-theory add credibility to the many-worlds interpretation of quantum mechanics?
And what about quantum computing? Would its success seem to indicate that these parallel universes are really existent?
Coin said:The "parallel worlds" of MWI quantum mechanics have no relationship to the "braneworlds" in M-theory, I am quite sure.
Also quantum computing does not favor anyone interpretation of quantum mechanics over any other. Quantum computing is just the same quantum mechanics from fifty years ago, just it is now being applied in an unusual way. It's subject to, and therefore unable to tell us very much new about, the same interpretational puzzles that the quantum mechanics of fifty years ago was.
The communication-via-gravity-waves idea is definitely interesting though...
This is not strictly correct. The atoms in a quantum computer make use of the quantum wavefunction-- they make use of the "information" that can be stored in the quantum wavefunction, and they make use of the way that states of the quantum wavefunction can interfere and be entangled, and in particular they make use of the fact that quantum probabilities are complex numbers.Unbeliever said:I thought that the atoms in a quantum computer make use of other dimensions to arrive at their solutions
but if they're not making use of the same dimensions proposed in M-theory, then what dimensions do they make use of?
M-Theory is a theoretical framework that aims to combine all the fundamental forces of nature, including gravity, into one cohesive theory. It is a proposed extension of string theory, which suggests that the fundamental building blocks of the universe are not particles, but tiny, vibrating strings.
M-Theory has the potential to provide a unified explanation for all of the fundamental forces of nature, which could lead to a more complete understanding of the universe. It also offers potential solutions to some long-standing problems in physics, such as the unification of quantum mechanics and general relativity.
Currently, there is no direct evidence for M-Theory. However, some of its predictions, such as the existence of extra dimensions and supersymmetry, have been observed in experiments at the Large Hadron Collider. Additionally, M-Theory provides a more elegant and mathematically consistent framework for understanding the universe than previous theories.
Due to the complexity of M-Theory, it is currently challenging to test experimentally. However, there are ongoing efforts to search for evidence of its predictions, such as the detection of gravitational waves and the discovery of additional dimensions through particle collisions at the Large Hadron Collider.
One of the main criticisms of M-Theory is that it is currently a purely theoretical framework and has not yet been proven through experimental evidence. It also requires the existence of extra dimensions, which some physicists believe may be impossible to detect. Additionally, M-Theory is a highly complex and mathematical theory, making it challenging to understand and test.