Subentropy

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The lower bound of the entropy of a mixed quantum state

    "For relative entropy the average coherence is determined by the difference between the von Neumann entropy and the quantum subentropy of the state, and leads to upper bounds for the latter quantity."

Example

More examples

"For relative entropy the average coherence is determined by the difference between the von Neumann entropy and the quantum subentropy of the state, and leads to upper bounds for the latter quantity."

Etymology

From sub- + entropy.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.