Maximal entanglement versus entropy for mixed quantum states

Tzu Chieh Wei, Kae Nemoto, Paul M. Goldbart, Paul G. Kwiat, William J. Munro, Frank Verstraete

Research output: Contribution to journalArticlepeer-review


Families of maximally entangled mixed states (MEMS) were determined. Various measures of entanglement and mixedness were considered. It was found that the form of the MEMS depends heavily on the measures used. Certain classes of frontier states behave discontinuously at a specific point on the entanglement-mixedness frontier. Under most of the settings considered, analytical forms were explicitly derived for the frontier states. In the cases of entanglement of formation and relative entropy, for most values of mixedness, it was observed that the rank-2 and rank-3 MEMS have more entanglement than Werner states do.

Original languageEnglish (US)
Article number022110
Pages (from-to)022110/1-022110/12
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number2
StatePublished - Feb 2003

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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