Entangled diamonds blur quantum-classical divide | NewScientist

scinerds:

Two diamonds as wide as earring studs have been made to share the spooky quantum state known as entanglement. The feat, performed at room temperature, blurs the divide between the classical and quantum worlds, since typically the quantum link has been made with much smaller particles at low temperatures.

Entanglement is one of the weird aspects of quantum mechanics, where the fates of two or more particles are intertwined – even when they are physically far apart. Electrons, for example, have been entangled, so that changing the quantum spin of one affects the spins of its entangled partners.

Macroscopic objects, on the other hand, are supposed to mind their own business – flipping one coin shouldn’t force a neighbouring flipped coin to come up heads.

But that’s just what happened with two 3-millimetre-wide diamonds on a lab bench at the University of Oxford. Physicists there led by Ka Chung Lee andMichael Sprague were able to show that the diamonds shared one vibrational state between them.

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hrmmm…. really and truly?

  • December 11
  • , 2011
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    this is frighteningly awesome
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