Entanglement Distribution and Entangling Power of Quantum Gates

Abstract

Quantum gates, that play a fundamental role in quantum computation and other quantum information processes, are unitary evolution operators $\hat{U}$ that act on a composite system changing its entanglement. In the present contribution we study some aspects of these entanglement changes. By recourse of a Monte Carlo procedure, we compute the so called "entangling power" for several paradigmatic quantum gates and discuss results concerning the action of the CNOT gate. We pay special attention to the distribution of entanglement among the several parties involved.

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Cited by in corpus (4)

• Unitary quantum gates, perfect entanglers and unistochastic maps
• Entanglement-based linear-optical qubit amplifier
• Entangling efficiency of linear-optical quantum gates
• Efficient generation of random multipartite entangled states using time optimal unitary operations