Quantum Entanglement - The Weirdness Of Quantum Mechanics
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Uploaded on Feb 13, 2010
http://www.facebook.com/ScienceReason ... Quantum Mechanics (Chapter 6): Quantum Entanglement - The Weirdness Of Quantum Mechanics.
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Quantum entanglement, also called the quantum non-local connection, is a property of a quantum mechanical state of a system of two or more objects in which the quantum states of the constituting objects are linked together so that one object can no longer be adequately described without full mention of its counterpart—even if the individual objects are spatially separated in a spacelike manner.
The property of entanglement was understood in the early days of quantum theory, although not by that name. Quantum entanglement is at the heart of the EPR paradox developed by Albert Einstein, Boris Podolsky, and Nathan Rosen in 1935. This interconnection leads to non-classical correlations between observable physical properties of remote systems, often referred to as nonlocal correlations.
Quantum mechanics holds that observables, for example spin, are indeterminate until some physical intervention is made to measure an observable of the object in question. In the singlet state of two spin, it is equally likely that any given particle will be observed to be spin-up or spin-down.
Measuring any number of particles will result in an unpredictable series of measurements that will tend to a 50% probability of the spin being up or down. However, the results are quite different if this experiment is done with entangled particles. For example, when two members of an entangled pair are measured, their spin measurement results will be correlated.
Two (out of infinitely many) possibilities are that the spins will be found to always have opposite spins (in the spin-anti-correlated case), or that they will always have the same spin (in the spin-correlated case). Measuring one member of the pair therefore tells you what spin the other member would have if it were also measured. The distance between the two particles is irrelevant.
• http://en.wikipedia.org/wiki/Quantum_...
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Top Comments
TheBeautyofTrance 2 months ago
thumbs up if science is cool even if you're not stoned
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goldenthroat86 4 months ago
Science is so freakin cool. Thumbs up if you're watching this stoned:)
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Video Responses
All Comments (927)
fntime 1 week ago
Intelligent minds are digital. Creative minds are analog.
The space between the digits is lost by the intellectual mind.
They also lack subtlety. They are caught up with 1's and 0's.
But don't let them know, they get very angry and fresh
when this is pointed out. :)~
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fntime 1 week ago
Or maybe they are fucking with YOUR mind?
If you get any hang up calls in the middle of the night,
it's probably 'them'.
You know, they don't like you!
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Ovi Valentino 1 week ago
As I see it, if we understand how the entanglement works, we can break space travel barrier. Technically, there has to be something traveling back and forth between the atoms at a quantum level, or through a different dimension that is basically instant regardless of distance. Problem is, if we look at it, the wave collapses.
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Harold Maginnis 3 weeks ago
They are dumbing this down a little too much sometimes I wonder if its to feel a little self righteous.
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Richard Howell 4 weeks ago
I have a question: How do scientists go about separating two objects, so as not to cause them to collapse their waveforms? It's been bugging me. Cool video.
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Marceli Firlej 1 month ago
What is not possible in 4th (Space-Time) dimensions now is possible in 5th dimensions. This is the first real proof of existence extra physical dimension and biggest discovery in our time, which coming from quantum no-locality equations.
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Amit Ozalvo 1 month ago
This music was not written by physicists O_O
I think the music in this series is really good
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Amit Ozalvo 1 month ago
lol..
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TheCentralServices 1 month ago
What is the best practical method to entangle, seperate, observe and keep entangled particles?
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