NIST 'Quantum Logic Clock' Rivals Mercury Ion as World's Most Accurate Clock (IMAGE)

National Institute of Standards and Technology (NIST)

NIST 'Quantum Logic Clock' Rivals Mercury Ion as World's Most Accurate Clock

Caption

NIST physicist Till Rosenband adjusts the quantum logic clock, which derives its "ticks" from the natural vibrations of an aluminum ion (electrically charged atom). The aluminum ion is trapped together with one beryllium ion inside the copper-colored chamber in the foreground.

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Copyright Geoffrey Wheeler

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