Space diamonds may now be an astrophysicist's best friend.
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From
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Black diamonds, also known as carbonados, are dark, porous, and found only in Brazil and Central Africa. And they don't come from volcanoes — they come from outer space.
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When jewelers inspect diamonds, they look for cut, clarity, color, and carat. When University of Tennessee, Knoxville, geologists Larry Taylor and Yang Liu inspect diamonds, they look for minerals, inclusions jewelers hate, but whose presence could be clues for how parts of earth formed.
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Diamond-laden magmas apparently rapidly rise from deep within the Earth to the planet's surface by jettisoning weight, scientists now find.
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Entanglement is usually fragile in room-temperature solids, owing to strong interactions both internally and with the noisy environment. We generated motional entanglement between vibrational states of two spatially separated, millimeter-sized diamonds at room temperature. By measuring strong nonclassical correlations between Raman-scattered photons, we showed that the quantum state of the diamonds has positive concurrence with 98% probability. Our results show that entanglement can persist in the classical context of moving macroscopic solids in ambient conditions.
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