decoherence

British

/ ˌdiːkəʊˈhɪərəns /

noun

physics the process in which a system's behaviour changes from that which can be explained by quantum mechanics to that which can be explained by classical mechanics

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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The faster the gate speed, the more computations can be performed before qubits fall out of their quantum state in a process called decoherence.

From MarketWatch • Oct. 25, 2025

In real-world conditions, these systems are particularly vulnerable to energy loss and decoherence, a process in which quantum systems lose essential properties like entanglement and superposition, leading to reduced performance.

From Science Daily • Oct. 24, 2025

Could this nuclear environment play a role in so-called quantum decoherence?

From Science Daily • Dec. 2, 2024

Using the extracted spectral density, it is possible not only to understand how fast the decoherence happens but also to determine which part of the chemical environment is mostly responsible for it.

From Science Daily • Dec. 19, 2023

The decoherence is effected by giving the stool a tilt by means of an electromagnet.

From Hertzian Wave Wireless Telegraphy by Fleming, John Ambrose

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023