Berlin 2005 – wissenschaftliches Programm

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MA: Magnetismus

MA 14: Molekularer Magnetismus

MA 14.2: Vortrag

Samstag, 5. März 2005, 14:00–14:15, TU H1012

Quantum Computation Using Endohedral Fullerenes — •Boris Naydenov¹, Wofgang Harneit¹, Christian Spudat¹, Michael Scheloske¹, Heike Süss², and Jürg Hulliger² — ¹Institut für Experimentalphysik, Freie Universität Berlin, Arnimalle 14, 14159 Berlin, Germany — ²Dept. f. Chemie und Biochemie, Universität Bern, Freiestrasse 3, 3012 Bern , Switzerland

The endohedral atom in N@C₆₀ and P@C₆₀ is in its atomic state, it is well shielded from the surrounding and it possesses a very sharp EPR signal. These molecules are very suitable for quantum computation (QC) purposes, because of their very long relaxation times and the possibility of good scalability [1]. We present here our work and demonstrate the first steps towards the QC using our fullerenes: one qubit operations, decoherence times (T₂ up to 150 µs) and the alignment of our molecules in 1D channels [2]. The latter provides a way to selectively address the (±3/2;±1/2) and (1/2;-1/2) transitions, giving access to all internal spin degrees of freedom.

[1] W. Harneit, Phys. Rev. A 65 (2003) 032322

[2] H.I. Süss, M. Lutz, J. Hulliger, Cryst. Eng. Comm. 4 (2002) 610