unitarityn.
/ˌjuːnɪˈtarᵻti/, U.S. /ˌjunəˈtɛrədi/ Chiefly Mathematics and Physics.
The property of being unitary (in various senses, esp. unitary adj. 7); an instance of this.
ΘΚΠ
the world > relative properties > number > specific numbers > one > [noun] > condition of being
onenesseOE
onehoodc1225
unityc1330
onlepihead1340
oneheadc1350
singlertyc1400
onliheada1425
uniona1513
singularity1583
singleness1597
singularness1650
oneship1656
unit1670
onefoldness1674
unicity1691
unitude1841
monadity1844
unitarinessa1866
unitarity1922
the world > matter > physics > quantum theory > quantum mechanics > matrix mechanics > [noun] > unitary matrix > property of
unitarity1979
1922 U.S. Patent 1,432,836 1/1 To maintain the appearance of unitarity of the vault as a whole.
1932 Proc. National Acad. Sci. U.S.A. 18 94 The unitarity being due to the invariance of the measure.
1969 Nature 24 May 720/1 SU2 and SU3..are simple unitary symmetries in which the unitarity ensures that a set of possibilities has unit probability.
1979 J. C. Polkinghorne Particle Play vi. 88 Certain general properties (unitarity, crossing, analyticity)..are important aspects of relativistic quantum mechanics.
1995 J. T. Ottesen Infinite Dimensional Groups & Algebras i. 8 The other formalism..has the advantage of the operators becoming unitarities which commute with a certain complex conjugation operator.
2011 J. Gleick Information xiii. 358 The loss of information would violate unitarity, the principle that probabilities must add up to one.
This entry has been updated (OED Third Edition, September 2015; most recently modified version published online March 2022).
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n.1922