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Re: Historic Delft Experiments tests Einstein's 'God does not play dice' using quantum 'dice'

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Sam Wormley <swormley1@gmail.com> wrote:
> Historic Delft Experiments tests Einstein's 'God does not play dice' 
> using quantum 'dice'
>> http://phys.org/news/2015-10-historic-delft-einstein-god-dice.html
> 
> 
>> Random number generators developed at ICFO - The Institute of
>> Photonic Sciences, by the groups of ICREA Professors Morgan W.
>> Mitchell and Valerio Pruneri, played a critical role in the historic
>> experiment was published online today in Nature by the group of
>> Ronald Hanson at TU Delft. The experiment gives the strongest
>> refutation to date of Albert Einstein's principle of "local realism,"
>> which says that the universe obeys laws, not chance, and that there
>> is no communication faster than light.
>>
>> As described in Hanson's group web the Delft experiment first
>> "entangled" two electrons trapped inside two different diamond
>> crystals, and then measured the electrons' orientations. In quantum
>> theory entanglement is powerful and mysterious: mathematically the
>> two electrons are described by a single "wave-function" that only
>> specifies whether they agree or disagree, not which direction either
>> spin points. In a mathematical sense, they lose their identities.
>> "Local realism" attempts to explain the same phenomena with less
>> mystery, saying that the particles must be pointing somewhere, we
>> just don't know their directions until we measure them.
>>
>> When measured, the Delft electrons did indeed appear individually
>> random while agreeing very well. So well, in fact, that they cannot
>> have had pre-existing orientations, as realism claims. This behaviour
>> is only possible if the electrons communicate with each other,
>> something that is very surprising for electrons trapped in different
>> crystals. But here's the amazing part: in the Delft experiment, the
>> diamonds were in different buildings, 1.3 km away from each other.
>> Moreover, the measurements were made so quickly that there wasn't
>> time for the electrons to communicate, not even with signals
>> traveling at the speed of light. This puts "local realism" in a very
>> tight spot: if the electron orientations are real, the electrons must
>> have communicated. But if they communicated, they must have done so
>> faster than the speed of light. There's no way out, and local realism
>> is disproven. Either God does play "dice" with the universe, or
>> electron spins can talk to each other faster than the speed of
>> light.
 
 
Looks like no one has any interest in discussion this cut and
paste, spammer. 

-- 
Jim Pennino

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Re: Historic Delft Experiments tests Einstein's 'God does not play dice' using quantum 'dice' jimp@specsol.spam.sux.com - 2015-11-10 22:10 +0000

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