uncertainty principle

SEE SYNONYMS FOR uncertainty principle ON THESAURUS.COM

noun Physics.

the principle of quantum mechanics, formulated by Heisenberg, that the accurate measurement of one of two related, observable quantities, as position and momentum or energy and time, produces uncertainties in the measurement of the other, such that the product of the uncertainties of both quantities is equal to or greater than h/2π, where h equals Planck's constant.

Also called indeterminacy principle, Heisenberg uncertainty principle.

Origin of uncertainty principle

First recorded in 1930–35

Words nearby uncertainty principle

unceasing, uncensored, unceremonious, uncertain, uncertainty, uncertainty principle, unchain, unchallenged, unchancy, unchangeable, unchanged

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for uncertainty principle

uncertainty principle

noun

the principle that energy and time or position and momentum of a quantum mechanical system, cannot both be accurately measured simultaneously. The product of their uncertainties is always greater than or of the order of h, where h is the Planck constantAlso known as: Heisenberg uncertainty principle, indeterminacy principle

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

Cultural definitions for uncertainty principle

uncertainty principle

The statement in quantum mechanics, formulated by Werner Heisenberg, that it is impossible to measure two properties of a quantum object, such as its position and momentum (or energy and time), simultaneously with infinite precision.

Scientific definitions for uncertainty principle

uncertainty principle

[ ŭn-sûr′tn-tē ]

A principle, especially as formulated in quantum mechanics, that greater accuracy of measurement for one observable entails less accuracy of measurement for another. For example, it is in principle impossible to measure both the momentum and the position of a particle at the same time with perfect accuracy. Any pair of observables whose operators do not commute have this property. As defined in quantum mechanics, it is also called Heisenberg's uncertainty principle. Similar uncertainty principles hold for non-quantum mechanical systems involving waves as well.

单词	uncertainty principle
释义	uncertainty principle SEE SYNONYMS FOR uncertainty principle ON THESAURUS.COM noun Physics. the principle of quantum mechanics, formulated by Heisenberg, that the accurate measurement of one of two related, observable quantities, as position and momentum or energy and time, produces uncertainties in the measurement of the other, such that the product of the uncertainties of both quantities is equal to or greater than h/2π, where h equals Planck's constant. Also called indeterminacy principle, Heisenberg uncertainty principle. Origin of uncertainty principle First recorded in 1930–35 Words nearby uncertainty principle unceasing, uncensored, unceremonious, uncertain, uncertainty, uncertainty principle, unchain, unchallenged, unchancy, unchangeable, unchanged Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for uncertainty principle uncertainty principle noun the principle that energy and time or position and momentum of a quantum mechanical system, cannot both be accurately measured simultaneously. The product of their uncertainties is always greater than or of the order of h, where h is the Planck constantAlso known as: Heisenberg uncertainty principle, indeterminacy principle 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 Words related to uncertainty principle quantum mechanics, statistical mechanics Cultural definitions for uncertainty principle uncertainty principle The statement in quantum mechanics, formulated by Werner Heisenberg, that it is impossible to measure two properties of a quantum object, such as its position and momentum (or energy and time), simultaneously with infinite precision. The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. Scientific definitions for uncertainty principle uncertainty principle [ ŭn-sûr′tn-tē ] A principle, especially as formulated in quantum mechanics, that greater accuracy of measurement for one observable entails less accuracy of measurement for another. For example, it is in principle impossible to measure both the momentum and the position of a particle at the same time with perfect accuracy. Any pair of observables whose operators do not commute have this property. As defined in quantum mechanics, it is also called Heisenberg's uncertainty principle. Similar uncertainty principles hold for non-quantum mechanical systems involving waves as well. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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uncertainty principle

noun Physics.

Origin of uncertainty principle

Words nearby uncertainty principle

British Dictionary definitions for uncertainty principle

noun

Words related to uncertainty principle

Cultural definitions for uncertainty principle

Scientific definitions for uncertainty principle