Geometric quantum gates in liquid-state NMR based on a cancellation of dynamical phases
Quantum Physics
2009-11-11 v2
Abstract
A proposal for applying non-adiabatic geometric phases to quantum computing, called the double-loop method [S.-L. Zhu and Z. D. Wang, Phys. Rev. A {\bf 67}, 022319 (2003)], is demonstrated in a liquid state NMR quantum computer. Using a spin echo technique, the original method is modified so that quantum gates are implemented in a standard high-precision NMR system for chemical analysis. We show that the dynamical phase is successfully eliminated and a one-qubit quantum gate is realized, although the fidelity is not so high.
Keywords
Cite
@article{arxiv.0906.0474,
title = {Geometric quantum gates in liquid-state NMR based on a cancellation of dynamical phases},
author = {Yukihiro Ota and Yoshito Goto and Yasusi Kondo and Mikio Nakahara},
journal= {arXiv preprint arXiv:0906.0474},
year = {2009}
}