Scientists have seen “spooky” quantum behaviour happening to objects at the human scale, according to a new paper.

Researchers have seen quantum fluctuations “kick” large objects such as mirrors, moving them by a tiny degree but one big enough to measure.

Such behaviour has previously been predicted by quantum physicists. But it has never before been measured.

The movements are the result of the way the universe is structured, when seen at the level of quantum mechanics: researchers describe it as a “noisy” space, where particles are constantly switching in and out of existence, which creates a low-level fuzz at all times.

Normally, that background of quantum “noise” is too subtle to detect in objects that are visible at the human-scale. But the new research shows that scientists have finally detected those movements, using new technology to watch for those fluctuations.

Researchers at the MIT LIGO Laboratory saw that the those fluctuations could move an object as big as a 40-kilogram mirror. The movement pushed the large mirrors a tiny amount, as predicted theoretically, allowing it to be measured by scientists.[…]

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