Physica Scripta

Entanglement, Disentanglement and Wigner Functions

Yorick Hardy, Willi-Hans Steeb, Ruedi Stoop

Published Jan 1, 2004• 1 citation

Abstract

Entangled quantum states are an important component of quantum computing techniques such as quantum error-correction, dense coding and quantum teleportation. We describe how to generate fully entangled states in the Hilbert space C N ⊗ C N starting from a unitary matrix and show that they form an orthonormal basis in this space. Disentanglement is also discussed. Moreover we also calculate the Wigner function of fully entangled states.

DOI: 10.1238/physica.regular.069a00166

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