Observable

Adjective

  • Deserving to be observed.
  • Able to be observed.

Noun

  • (physics) Any physical property that can be observed and measured directly and not derived from other properties

    "Temperature is an observable but entropy is derived."

  • "In quantum mechanics, observables correspond to Hermitian operators. Also, they act a lot like random variables. Taking their average one may recover something resembling a classical observable."

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