A collaboration between researchers in the US and Germany has made a major breakthrough in optical nuclear clocks, achieving laser-based excitation of Thoria-229 in a non-transparent host material.
Atomic clocks keep time by counting the ‘ticks’ of electrons moving between two energy levels. Physicists have long wanted to count a nuclear tick instead. A nucleus is more shielded than an atom’s ...
Scientists have demonstrated a simpler way to excite the nucleus of thorium atoms with laser light, revealing a direct electrical signal tied to nuclear activity. By moving from specialized crystals ...
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