Entanglement Distribution and Entangling Power of Quantum Gates

Details Entanglement Distribution and Entangling Power of Quantum Gates Entanglement Distribution and Entangling Power of Quantum Gates

2006-03-07

arxiv.org/abs/quant-ph/0603059v1

Optics and Spectroscopy 99, 371 (2005)

Physics

Quantum Physics

Scientific paper

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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