If your wristwatch was as accurate as today’s atomic clocks, it would not gain or lose a second in 80 million years.
Physics - Atoms in a lattice keep time - 0 views
The NIST group traps and cools neutral 171Yb atoms and loads them into a one-dimensional lattice, so that about 30,000 atoms fill several hundred lattice sites.
Lemke et al. compare their optical lattice clock with the current standard atomic fountain clock and find that the accuracy of the Yb lattice clock potentially challenges the current standard.
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