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NMR GHZ
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R. Laflamme5, E. Knill6, W. H. Zurek5, P. Catasti7 and S. V. S. Mariappan7
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Theoretical Astrophysics T-6, MS B-288, Los Alamos National Laboratory, Los Alamos, NM, 87455 |
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Computer Research and Applications CIC-3, MS B-265, Los Alamos National Laboratory, Los Alamos, NM, 87455 |
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Theoretical Biology T-10, MS B-288, Los Alamos National Laboratory, Los Alamos, NM, 87455 |
Abstract
We describe the creation of a Greenberger-Horne-Zeilinger (GHZ) state of the form (|000〉 + |111〉)/√2 (three maximally entangled
quantum bits) using Nuclear Magnetic Resonance (NMR). We have successfully carried out the experiment using the proton and
carbon spins of trichloroethylene, and confirmed the result using state tomography. We have thus extended the space of entangled
quantum states explored systematically to three quantum bits, an essential step for quantum computation.
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