quantum entanglement

noun

: a property of a set of subatomic particles whereby a quantum characteristic (such as spin or momentum) of one particle is directly and immediately correlated with the equivalent characteristic of the others regardless of separation in space
In quantum entanglement, subatomic particles maintain a relationship—for instance, vibrating when the other vibrates—even when separated and even if they are at great distances from each other.Sean Hamill
Quantum entanglement occurs when two systems share a common quantum mechanical state. Such systems also share a common fate, even if they become physically quite separated. The results of a measurement performed on one will determine the results of future measurements on the second.Claudia Tesche

Examples of quantum entanglement in a Sentence

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Distant objects can manifest quantum entanglement – remote correlations that escape all possible classical interpretation. Zhixin Wang, The Conversation, 10 Oct. 2025 To do so, Kompella says, the system relies on the fact that quantum signals shared across their sensitive network are connected together via quantum entanglement. Margo Anderson, IEEE Spectrum, 9 Oct. 2025 Some of these efforts involve looking for quantum entanglement between two objects generated purely by their mutual gravitational attraction. Quanta Magazine, 1 Oct. 2025 Now, Rice University researchers have found evidence that quantum entanglement can accelerate this process. Aamir Khollam, Interesting Engineering, 1 Oct. 2025 See All Example Sentences for quantum entanglement

Word History

First Known Use

1991, in the meaning defined above

Time Traveler
The first known use of quantum entanglement was in 1991

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“Quantum entanglement.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quantum%20entanglement. Accessed 18 Oct. 2025.

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