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Erschienen in: Quantum Information Processing 7/2015

01.07.2015

Exact solutions for time-optimal control of spin \(I=1\) by NMR

verfasst von: Vitaly Shauro

Erschienen in: Quantum Information Processing | Ausgabe 7/2015

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Abstract

We consider the problem of time-optimal control of quadrupole nucleus with the spin \(I=1\) by NMR. In contrast to the conventional methods based on selective pulses, the control is implemented using nonselective pulses separated by free-evolution intervals. Using the Cartan decomposition, the system of equations is obtained for finding parameters of a control field. Partial time-optimal solutions for the important single-qutrit gates (selective rotations and quantum Fourier transform) are found. The strong dependence of minimum gate implementation times on global phase of the gate is observed. The analytical values of minimum times are consistent with the numerical data.

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Metadaten
Titel
Exact solutions for time-optimal control of spin by NMR
verfasst von
Vitaly Shauro
Publikationsdatum
01.07.2015
Verlag
Springer US
Erschienen in
Quantum Information Processing / Ausgabe 7/2015
Print ISSN: 1570-0755
Elektronische ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-015-0999-8

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