ket - What does it mean?
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Definition of 'ket'English
Etymology 1
From (term) notation invented by .
Noun
( en-noun)
(physics) A vector, in Hilbert space, especially as representing the state of a quantum mechanical system; the complex conjugate of a bra; a ket vector. Symbolised by |...? .
- A particular ket , say , might be represented by a particular column vector. Its corresponding bra, , would then be represented by the row vector which is the transpose conjugate of that column vector.
Etymology 2
Compare Icelandic . The use of the term (ket) for "candy" or "sweets" probably derived from its use to describe sweet meats or as a deterrent to children.
Noun
( en-noun)
(Northern England) Carrion; any filth.
(Northumbria) Sweetmeats.
(Geordie) A sweet, treat or candy.
References
* The Collaborative International Dictionary of English v.0.48 on DICT.org
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Etymology 3
Abbreviation.
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