Read out of a Nuclear Spin Qubit

Details Read out of a Nuclear Spin Qubit Read out of a Nuclear Spin Qubit

2004-11-05

arxiv.org/abs/quant-ph/0411038v1

Quantum Information Processing 6, 127 (2007)

Physics

Quantum Physics

4 pages, 4 figures

Scientific paper

We propose a detector to read out the state of a single nuclear spin, with potential application in future scalable NMR quantum computers. It is based on a ``spin valve'' between bulk nuclear spin systems that is highly sensitive to the state of the measured spin. We suggest a concrete realization of that detector in a Silicon lattice. Transport of spin through the proposed spin valve is analogous to that of charge through an electronic nanostructure, but exhibits distinctive new features.

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