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Search results for bell entanglement

General Âé¶¹ÒùÔºics Aug 7, 2012

Sets & the city: World Science Festival 2012, New York-style (Part 1 of 2)

(Âé¶¹ÒùÔº) -- New York City is the nexus of all things intellectual, cultural and academic. (Being a native New Yorker, I admit being somewhat biased.) Either way, one highlight in this complex and vibrant metropolis is the ...

Quantum Âé¶¹ÒùÔºics Jul 23, 2012

Can quantum theory be improved?

(Âé¶¹ÒùÔº) -- Being correct 50% of the time when calling heads or tails on a coin toss won’t impress anyone. So when quantum theory predicts that an entangled particle will reach one of two detectors with just a 50% ...

Quantum Âé¶¹ÒùÔºics Jul 16, 2012

Quantum entanglement with notification

(Âé¶¹ÒùÔº) -- German scientists have demonstrated a method of heralding entanglement between distant stationary quantum systems without destroying this particular state. The experimental set-up paves the way towards quantum ...

Quantum Âé¶¹ÒùÔºics Jun 1, 2012

European team bests Chinese record at teleporting distance (Corrected)

(Âé¶¹ÒùÔº) -- A European team of physicists has bested the record set by a team of Chinese researchers last month for distance in teleporting quantum bits (qubits). Where the Chinese team accomplished their feat by teleporting ...

Quantum Âé¶¹ÒùÔºics May 8, 2012

Âé¶¹ÒùÔºics duo describe a way to guarantee true randomness

(Âé¶¹ÒùÔº) -- In the natural world, it seems randomness is all around. Walk through a forest for example and it appears completely random, despite the fact that natural patterns emerge at almost every turn. In the human world, ...

General Âé¶¹ÒùÔºics Mar 9, 2012

Âé¶¹ÒùÔºicist suggests Einstein could have beaten Bohr in famous thought experiment

(Âé¶¹ÒùÔºOrg.com) -- Way back in the 1930’s, Albert Einstein and Niels Bohr were sparring over ideas related to whether the new field of quantum mechanics was correct. In one thought experiment that Einstein said showed ...

Quantum Âé¶¹ÒùÔºics Nov 8, 2011

Fake violations of Bell tests reinforce importance of closing loopholes

(Âé¶¹ÒùÔºOrg.com) -- In quantum mechanics, Bell’s inequalities serve as a test of nonclassical behavior: if something (such as a light source) violates Bell’s inequalities, then it can be considered to involve quantum ...

General Âé¶¹ÒùÔºics Jun 27, 2011

Hippie days: How a handful of countercultural scientists changed the course of physics in the 1970s

Every Friday afternoon for several years in the 1970s, a group of underemployed quantum physicists met at Lawrence Berkeley Laboratory, in Northern California, to talk about a subject so peculiar it was rarely discussed in ...

Quantum Âé¶¹ÒùÔºics Jun 24, 2011

'Quantum magic' without any 'spooky action at a distance'

The quantum mechanical entanglement is at the heart of the famous quantum teleportation experiment and was referred to by Albert Einstein as "spooky action at a distance". A team of researchers led by Anton Zeilinger at the ...

General Âé¶¹ÒùÔºics Nov 30, 2010

Âé¶¹ÒùÔºicists close two loopholes while violating local realism

(Âé¶¹ÒùÔºOrg.com) -- The latest test in quantum mechanics provides even stronger support than before for the view that nature violates local realism and is thus in contradiction with a classical worldview. By performing an experiment ...

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