English Explanatory Dictionary

von Neumann entropy

English dictionary entry

Meanings

noun
  1. The entropy of a quantum state. If the state is expressed as a quantum density matrix ρ, then this entropy can be expressed mathematically as S=-tr(ρ log ρ) where tr is the trace operator and the logarithm is natural.

Pronunciation

/vɔn ˈnoɪ.mən ˈɛn.tɹə.pi/

Word forms

von Neumann entropy

Etymology

Named after John von Neumann.

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