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Proceedings Paper

Fast quantum computing with buckyballs
Author(s): Maria Sylvia Garelli; Feodor V. Kusmartsev
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Paper Abstract

We have found that encapsulated atoms in fullerene molecules, which carry a spin, can be used for fast quantum computing. We describe the scheme for performing quantum computations, going through the preparation of the qubit state and the realization of a two-qubit quantum gate. When we apply a static magnetic field to each encased spin, we find out the ideal design for the preparation of the quantum state. Therefore, adding to our system a time dependent magnetic field, we can perform a phase-gate. The operational time related to a π-phase gate is of the order of ns. This finding shows that, during the decoherence time, which is proportional to micrometer/s, we can perform many thousands of gate operations. In addition, the two-qubit state which arises after a π-gate is characterized by a high degree of entanglement. This opens a new avenue for the implementation of fast quantum computation.

Paper Details

Date Published: 31 May 2006
PDF: 7 pages
Proc. SPIE 6264, Quantum Informatics 2005, 62640A (31 May 2006); doi: 10.1117/12.683125
Show Author Affiliations
Maria Sylvia Garelli, Loughborough Univ. (United Kingdom)
Feodor V. Kusmartsev, Loughborough Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 6264:
Quantum Informatics 2005
Yuri I. Ozhigov, Editor(s)

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