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decoherence

British  
/ ˌdiːkəʊˈhɪərəns /

noun

  1. 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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However, progress has been limited by a major challenge known as decoherence.

From Science Daily • Apr. 13, 2026

This allows them to pass quantum states between each other without decoherence, meaning no information is lost.

From Science Daily • Apr. 13, 2026

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

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

From Hertzian Wave Wireless Telegraphy by Fleming, John Ambrose

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