Entanglement detection via tighter local uncertainty relations

Cheng Jie Zhang, Hyunchul Nha, Yong Sheng Zhang, Guang Can Guo

Research output: Contribution to journalArticle

15 Citations (Scopus)


We propose an entanglement criterion based on local uncertainty relations (LURs) in a stronger form than the original LUR criterion introduced by Hofmann and Takeuchi. Using arbitrarily chosen operators {Âk} and {B□k} of subsystems A and B, the tighter LUR criterion, which may be used not only for discrete variables but also for continuous variables, can detect more entangled states than the original criterion.

Original languageEnglish
Article number012324
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number1
Publication statusPublished - 2010


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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