Measurement-induced chaos with entangled states

T. Kiss, S. Vymětal, L. D. Tóth, A. Gábris, I. Jex, G. Alber

Research output: Contribution to journalArticle

10 Citations (Scopus)


The dynamics of an ensemble of identically prepared two-qubit systems is investigated which is subjected to the iteratively applied measurements and conditional selection of a typical entanglement purification protocol. The resulting dynamics exhibits strong sensitivity to initial conditions. For one class of initial states two types of islands characterize the asymptotic limit. They correspond to a separable and a fully entangled two-qubit state, respectively, and their boundaries form fractal-like structures. In the presence of incoherent noise an additional stable asymptotic cycle appears.

Original languageEnglish
Article number100501
JournalPhysical review letters
Issue number10
Publication statusPublished - Aug 31 2011

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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