ScienceJuly 16, 2026

decoherence

/ˌdiːkoʊˈhɪərəns/

Definition

The process by which a quantum system loses its sensitive wave-like properties due to interaction with the surrounding environment, effectively destroying quantum information.

Etymology

The word is derived from the prefix 'de-' (meaning reversal or removal) and the Latin 'cohaerere' (to stick together or hold fast). It emerged in physics to describe the 'un-sticking' or breakdown of coherent quantum states.

In the news

In the article, decoherence is described as a noise-related phenomenon that disrupts the quantum states of molecules, which the researchers aim to minimize in their precision measurement experiments.

Cold radioactive molecules prepped and readied for physics discoveries

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EurekAlert!

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