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ket

Pronunciation: /kɛt/

The English word “ket” has 6 meanings listed here.

noun

  1. A column vector, in Hilbert space, especially as representing the state of a quantum mechanical system; the complex conjugate transpose of a bra (a row vector); a ket vector. Symbolised by |...〉.
  2. Carrion; any filth.
  3. Sweetmeats.
  4. A sweet, treat or candy.
  5. ketamine
  6. matted wool

Etymology

From bra-ket notation invented by Paul Dirac, from bracket.

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Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.