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Thread: Quantum entanglement?

  1. #1 Quantum entanglement? 
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    Quantum Mechanics itself is a very complex science and a lot of pseudo science has taken over and it is hard to find information about quantum entanglement on the Web. So what is Quantum Entanglement? How does it operate and what are its implications on the world as we know it? Please provide a simple description in plain English please.


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  3. #2 Re: Quantum entanglement? 
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    Quote Originally Posted by Light
    Quantum Mechanics itself is a very complex science and a lot of pseudo science has taken over and it is hard to find information about quantum entanglement on the Web. So what is Quantum Entanglement? How does it operate and what are its implications on the world as we know it? Please provide a simple description in plain English please.
    For a cogent explanation take a look at The Road to Reality, A Complete Guide to the Laws of the Universe by Roger Penrose.

    You will get more out of that than from any amount of "googling" or forumspeak.


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    I'd also like to point out that "simple descriptions in plain English" is more or less why so much pseudoscience has taken over QM (and relativity). They're a bit too counter-intuitive to admit simple descriptions that won't leave too much room for misinterpretation. Well, the point is, you can get a simple description in plain English, but make sure you understand that it's not the whole story.
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    I studied a little bit of Quantum Physics and I don't think I could answer this question, but I found this from Stanford Encyclopedia of Philosophy:

    Quantum Entanglement and Information
    http://plato.stanford.edu/entries/qt-entangle/

    Any comment on this one?

    Thank you very much.
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  6. #5 Re: Quantum entanglement? 
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    Quote Originally Posted by Light
    Quantum Mechanics itself is a very complex science and a lot of pseudo science has taken over and it is hard to find information about quantum entanglement on the Web. So what is Quantum Entanglement? How does it operate and what are its implications on the world as we know it? Please provide a simple description in plain English please.
    It's a situation that seems to be able to violate causality. Here's an example of an experiment that uses it:

    http://en.wikipedia.org/wiki/Delayed...quantum_eraser

    Basically, an entangled pair of photons are like those fabled Corsican Twins. Whatever happens to one affects the other, no matter how far away the other is. One of the simplest ways to generate entangled photons is :

    http://en.wikipedia.org/wiki/Spontan...own_conversion

    Basically, there are some crystals that are capable of splitting normal photons into entangled pairs of photons. In theory, entanglement could enable instantaneous communication, but in practice the two communicating devices would still need to use ordinary communication in the process, in order to know which pairs of photons belong with each other.
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  7. #6  
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    take a look at my post on gravity. it explains a lot in a very simplistic way. any criticism is welcome because i feel it refines my theories. http://www.thescienceforum.com/how-g...rks-19843t.php
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    also check out www.science.gov they have some interesting info
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  9. #8  
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    There are already a ton of sources here, but I will try:

    Quantum entanglement is when two quantum particles (electrons, photons, etc.) become entangled. If one, for example, spins in a direction, the other will spin too. Even if they are millions of miles away, they will still do this.

    It is obvious, of course, that somebody would attempt to use this to send messages. However, there are lots of problems in the way.
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  10. #9 Re: Quantum entanglement? 
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    Quote Originally Posted by Light
    Quantum Mechanics itself is a very complex science and a lot of pseudo science has taken over and it is hard to find information about quantum entanglement on the Web. So what is Quantum Entanglement? How does it operate and what are its implications on the world as we know it? Please provide a simple description in plain English please.

    energy shared between mass; an entanglement

    or purely, all mass in the whole universe is entangled to all other mass in the WHOLE universe; there is no such thing as an absolute vacuum anywhere in the universe. (and when you find someone suggest, 'another dimension' then know them the psuedo's of science)


    Here is a 229 pg pub from London; notice the Coat of Arms.

    http://arxiv.org/PS_cache/arxiv/pdf/...810.0026v2.pdf

    It is from August 08 and is far more current than the psuedo stuff that physicist provide. (ie.... most do not observe the property as relevant and why so little is known about it)

    i suggest to any real students, observe this property as the 'missing link'
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  11. #10  
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    Entanglement just means that for some set of particles, some set of measurements will show a correlation. In simpler terms, if you measure particle A, you'll know something about particle B, regardless of where particle B is. As far as using this to transmit information, it's just not possible. If you only have access to one particle, you have no way of knowing what the other particle is doing, so the properties of entanglement don't do you any good.

    It's also one of the key concepts that make the idea of a quantum computer possible. Unfortunately, there are still a lot of hurdles to overcome. Entanglement is a transient state, for the most part. Just sitting there, two particles will become disentangled after a fairly short amount of time.
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    Quote Originally Posted by MagiMaster
    Entanglement just means that for some set of particles, some set of measurements will show a correlation. In simpler terms, if you measure particle A, you'll know something about particle B, regardless of where particle B is. As far as using this to transmit information, it's just not possible. If you only have access to one particle, you have no way of knowing what the other particle is doing, so the properties of entanglement don't do you any good.
    that is not fair!

    just because the 'information' as defined is not conveying does not mean the property does not affect the mass irregardless to d/t.

    the property does exist and is relevant

    who cares if the folks in the science department can't make it work for making money. (now ya see why i will not publish)


    It's also one of the key concepts that make the idea of a quantum computer possible.

    sorry, polaritonic, exciton, phonons, solitons and the whole new arena of holding a wavelength UPON MASS is what is changing Quantum Computing.....

    right now a wavelength can be imposed to a structure and recalled.

    each structure can hold it's own set of properties and recalled

    now imagine how many variables to each structure (molecules) can retain its own wavelengths and then note how vast the spectrum of em is.

    ie.... it is how memories work in the brain (fixed structures within the glial)

    Unfortunately, there are still a lot of hurdles to overcome.
    kind of cool that our generation is on the ground floor

    want a nobel, start reading; there are plenty to go around!
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  13. #12  
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    You do realize that you're making absolutely no sense, right?
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  14. #13  
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    Quote Originally Posted by MagiMaster
    You do realize that you're making absolutely no sense, right?
    It is not important that he understand. He is hopeless. It is only important that other people recognize that he is making no sense.



    Never argue with an idiot. He’ll drag you down to his level then beat you with experience! -- Anonymous
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    back to the property of energy (light/electromagnetism) call entanglement.





    Here is a link

    and within will offer you information from planck, bohr and qm, so each can dig for themselves

    i prefer each understand what it is, how it is/was observed and then combine with the analogies above and see for YOURSELF>


    http://www.experiencefestival.com/ba...m_entanglement



    Basics of quantum mechanics - Background
    Basics of quantum mechanics - Old quantum theory
    Basics of quantum mechanics - Planck's constant
    Basics of quantum mechanics - Reduced Planck's constant
    Basics of quantum mechanics - Bohr atom
    Basics of quantum mechanics - Wave-particle duality
    Basics of quantum mechanics - Development of modern quantum mechanics
    Basics of quantum mechanics - Full quantum mechanical theory
    Basics of quantum mechanics - Schrödinger wave equation
    Basics of quantum mechanics - Uncertainty Principle
    Basics of quantum mechanics - Wavefunction collapse
    Basics of quantum mechanics - Eigenstates and eigenvalues
    Basics of quantum mechanics - The Pauli Exclusion Principle
    Basics of quantum mechanics - Dirac wave equation
    Basics of quantum mechanics - Quantum entanglement
    Basics of quantum mechanics - Notes


    that is what can be found within the link

    and i will answer any real questions;


    and let the complacent (remind me of preachers talking creation from dirt) rant
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