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Endohedral fullerenes for electron-spin-based quantum computing

Monday 27th September 2004 - 16:00 to 16:45
INI Seminar Room 1

A nitrogen atom encapsulated in a C60 buckyball, N@C60, carries an electron magnetic moment that is well isolated from the environment. It exhibits extremely long spin decoherence times, comparable with the longest measured in any solid state system. We explain the potential advantages of exploiting endohedral fullerenes as qubits and describe approaches to employing N@C60 and related molecules in multi-qubit structures. Using pulsed electron spin resonance we examine the capability of existing spectrometers to perform high-fidelity single-qubit unitary transformations, and find that the current state of the art is adequate for simple quantum computations.

University of Cambridge Research Councils UK
    Clay Mathematics Institute London Mathematical Society NM Rothschild and Sons