subentropy

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noun

The lower bound of the entropy of a mixed quantum state

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Meanings

nounsubentropy (plural subentropies)

plural subentropies

  1. natural sciencesThe 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.

    2015, Shuming Cheng, Michael J. W. Hall, “Complementarity relations for quantum coherence”, in arXiv

Origin

From sub- + entropy.

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Rhymes & wordplay

Anagrams

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Cite this entry
APA

subentropy. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/subentropy

MLA

“subentropy.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/subentropy. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “subentropy,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/subentropy.

Source: subentropy on Wiktionary, CC BY-SA 4.0.