lunes, 14 de noviembre de 2016

Atomic Beltway Could Solve Problems of Cosmic Gravity | NIST

Atomic Beltway Could Solve Problems of Cosmic Gravity | NIST
NIST
11/13/2016 07:00 PM EST

When is a traffic jam not a traffic jam? When it's a quantum traffic jam, of course. Only in quantum physics can traffic be standing still and moving at the same time.

A new theoretical paper from scientists at the National Institute of Standards and Technology (NIST) and the University of Maryland suggests that intentionally creating just such a traffic jam out of a ring of several thousand ultracold atoms could enable precise measurements of motion. If implemented with the right experimental setup, the atoms could provide a measurement of gravity, possibly even at distances as short as 10 micrometers—about a tenth of a human hair's width.

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