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qubit

British  
/ ˈkjuːbɪt /

noun

  1. computing a quantum bit

"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

qubit Scientific  
/ kyo̅o̅bĭt′ /

Etymology

Origin of qubit

C20: from qu ( antum ) + bit 4

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

In this condition, the qubit becomes less vulnerable to low-frequency noise from its surroundings.

From Science Daily Sep. 12, 2026

One method sends a single, actively controlled photon from one qubit to another.

From Science Daily Aug. 31, 2026

The researchers connected the transmon qubit to a quantum circuit refrigerator, allowing them to control heat flow on the quantum scale and demonstrate that this heat could be transformed into measurable work.

From Science Daily Aug. 14, 2026

Its internal state behaves like a qubit, while its motion acts as a quantum harmonic oscillator that can occupy many different motional states.

From Science Daily Jun. 15, 2026

A familiar example is a quantum bit, or qubit, which can exist in a combination of both 0 and 1 at the same time.

From Science Daily Jun. 15, 2026

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