Towards a fullerene-based quantum computer

Details Towards a fullerene-based quantum computer Towards a fullerene-based quantum computer

2005-11-21

arxiv.org/abs/quant-ph/0511198v1

Journal of Physics: Condensed Matter, Volume 18, Issue 21, pp. S867-S883 (2006).

Physics

Quantum Physics

20 pages, 13 figs, single column format

Scientific paper

10.1088/0953-8984/18/21/S12

Molecular structures appear to be natural candidates for a quantum technology: individual atoms can support quantum superpositions for long periods, and such atoms can in principle be embedded in a permanent molecular scaffolding to form an array. This would be true nanotechnology, with dimensions of order of a nanometre. However, the challenges of realising such a vision are immense. One must identify a suitable elementary unit and demonstrate its merits for qubit storage and manipulation, including input / output. These units must then be formed into large arrays corresponding to an functional quantum architecture, including a mechanism for gate operations. Here we report our efforts, both experimental and theoretical, to create such a technology based on endohedral fullerenes or 'buckyballs'. We describe our successes with respect to these criteria, along with the obstacles we are currently facing and the questions that remain to be addressed.

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