What is it about?
Fano-Feshbach resonances are quantum states which decay and thus have a finite lifetime. Here, we show both theoretically and with two experiments that, within the same system, the lifetimes may vary over four orders of magnitudes.
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Why is it important?
We explain the huge variation of lifetimes using the most basic concepts of quantum theory.
Perspectives
By identifying the condition which determines the lifetime of a decaying quantum state, we provide a blueprint for identifying long-lived states which can be used as a resource in quantum technologies.
Christiane P Koch
Freie Universitat Berlin
Read the Original
This page is a summary of: Phase protection of Fano-Feshbach resonances, Nature Communications, February 2020, Springer Science + Business Media,
DOI: 10.1038/s41467-020-14797-w.
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