dorsal/arxiv
View SchemaSpatially Encoded Pseudo-Pure States for NMR Quantum Information Processing
| Authors | Yehuda Sharf, Timothy F. Havel, David G. Cory |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0005076 |
| URL | https://arxiv.org/abs/quant-ph/0005076 |
| DOI | 10.1103/PhysRevA.62.052314 |
| Journal | Phys. Rev. A 62(2000), 052314. |
Abstract
Quantum information processing by liquid-state NMR spectroscopy uses pseudo-pure states to mimic the evolution and observations on true pure states. A new method of preparing pseudo-pure states is described, which involves the selection of the spatially labeled states of an ancilla spin with which the spin system of interest is correlated. This permits a general procedure to be given for the preparation of pseudo-pure states on any number of spins, subject to the limitations imposed by the loss of signal from the selected subensemble. The preparation of a single pseudo-pure state is demonstrated by carbon and proton NMR on 13C-labeled alanine. With a judicious choice of magnetic field gradients, the method further allows encoding of up to 2^N pseudo-pure states in independent spatial modes in an N+1 spin system. Fast encoding and decoding schemes are demonstrated for the preparation of four such spatially labeled pseudo-pure states.
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"abstract": "Quantum information processing by liquid-state NMR spectroscopy uses\npseudo-pure states to mimic the evolution and observations on true pure states.\nA new method of preparing pseudo-pure states is described, which involves the\nselection of the spatially labeled states of an ancilla spin with which the\nspin system of interest is correlated. This permits a general procedure to be\ngiven for the preparation of pseudo-pure states on any number of spins, subject\nto the limitations imposed by the loss of signal from the selected subensemble.\nThe preparation of a single pseudo-pure state is demonstrated by carbon and\nproton NMR on 13C-labeled alanine. With a judicious choice of magnetic field\ngradients, the method further allows encoding of up to 2^N pseudo-pure states\nin independent spatial modes in an N+1 spin system. Fast encoding and decoding\nschemes are demonstrated for the preparation of four such spatially labeled\npseudo-pure states.",
"arxiv_id": "quant-ph/0005076",
"authors": [
"Yehuda Sharf",
"Timothy F. Havel",
"David G. Cory"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.62.052314",
"journal_ref": "Phys. Rev. A 62(2000), 052314.",
"title": "Spatially Encoded Pseudo-Pure States for NMR Quantum Information Processing",
"url": "https://arxiv.org/abs/quant-ph/0005076"
},
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