Implementation of NMR quantum computation with parahydrogen-derived high-purity quantum states

We demonstrate the implementation of a quantum algorithm on a liquid-state NMR quantum computer using almost pure states. This was achieved using a two-qubit device where the initial state is an almost pure singlet nuclear spin state of a pair of {sup 1}H nuclei arising from a chemical reaction invo...

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Bibliographic Details
Published in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2004-09, Vol.70 (3), Article 032324
Main Authors: Anwar, M. S., Jones, J. A., Blazina, D., Duckett, S. B., Carteret, H. A.
Format: Article
Language:English
Subjects:
ALGORITHMS
ATOMIC AND MOLECULAR PHYSICS
CHEMICAL REACTIONS
ENERGY LEVELS
GATING CIRCUITS
HYDROGEN 1
INFORMATION THEORY
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
LIQUIDS
NUCLEAR MAGNETIC RESONANCE
PROTONS
QUANTUM MECHANICS
SPIN
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Summary:We demonstrate the implementation of a quantum algorithm on a liquid-state NMR quantum computer using almost pure states. This was achieved using a two-qubit device where the initial state is an almost pure singlet nuclear spin state of a pair of {sup 1}H nuclei arising from a chemical reaction involving parahydrogen. We have implemented Deutsch's algorithm for distinguishing between constant and balanced functions with a single query.
ISSN:1050-2947
1094-1622
DOI:10.1103/PhysRevA.70.032324