title: Measurement-induced chaos with entangled states.
abstract: 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.
authors: Research Institute for Solid State Physics and Optics, H-1525 Budapest Post Office Box 49, Hungary.
authors: T
authors: T
authors: Kiss
authors: S
authors: S
authors: Vymětal
authors: L D
authors: LD
authors: Tóth
authors: A
authors: A
authors: Gábris
authors: I
authors: I
authors: Jex
authors: G
authors: G
authors: Alber