Quantum Computing with Separable States?

Rüdiger Schack ()
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Rüdiger Schack: University of London, Department of Mathematics, Royal Holloway

A chapter in Macroscopic Quantum Coherence and Quantum Computing, 2001, pp 285-292 from Springer

Abstract: Abstract It has been shown recently that all nuclear spin states occuring in current NMR (nuclear magnetic resonance) quantum computing experiments are separable, i.e., the spins are unentangled and can be described as a collection of classical tops. Attempts to find a classical description for the quantum gate operations in NMR quantum computation, however, have had only limited success, and it may be conjectured that such a classical description does not exist in general. This raises the intriguing question of whether quantum computing with separable states is possible.

Keywords: Pure State; Density Operator; Unitary Transformation; Separable State; Classical Description (search for similar items in EconPapers)
Date: 2001
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DOI: 10.1007/978-1-4615-1245-5_29

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