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Researchers have experimentally confirmed long-lived metastable states in ytterbium ions with lifetimes exceeding 30 seconds, validating a theoretical prediction from the early 1990s. These stable configurations could significantly enhance trapped-ion quantum computers and atomic clocks by enabling more efficient qubit detection using single laser pulses. The discovery addresses fundamental physics questions while offering practical pathways for improving coherence times in leading candidate systems for scalable quantum hardware.

Source coveringThe Quantum Insider

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Researchers Measure Long-Lived Ytterbium Ion States for Quantum Applications

The Quantum InsiderJuly 27, 20263 min read

Insider Brief PRESS RELEASE — Researchers from the Universities of Amsterdam and New South Wales have answered a question that has been around for decades: whether ions of the metal ytterbium can enter certain long-lived and nearly stable states, and if so, for how long. The measured long-lived states may find applications in quantum computers […]

Researchers experimentally identified previously unexplored long-lived metastable states in ytterbium ions, with measured lifetimes of about 1 second, 10 seconds and evidence of a state lasting more than 30 seconds. The newly characterized states could improve trapped-ion quantum computers and atomic clocks by enabling more efficient qubit and qudit state detection, particularly through a metastable state that can…

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