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Hard limits on the postselectability of optical graph states

November 28, 2018

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Since the discovery of quantum mechanics, in the early 20th century, physicists have relied on optics to test its fundamentals.

from Top Technology News -- ScienceDaily https://ift.tt/2Au7PX9

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Scientists found a way to cool quantum computers using noise

Quantum computers need extreme cold to work, but the very systems that keep them cold also create noise that can destroy fragile quantum information. Scientists in Sweden have now flipped that problem on its head by building a tiny quantum refrigerator that actually uses noise to drive cooling instead of fighting it. By carefully steering heat at unimaginably small scales, the device can act as a refrigerator, heat engine, or energy amplifier inside quantum circuits. from Top Technology News -- ScienceDaily https://ift.tt/fJjN3FO

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Hard limits on the postselectability of optical graph states

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