Quantum Computation with Vibrationally Excited Molecules

Details Quantum Computation with Vibrationally Excited Molecules Quantum Computation with Vibrationally Excited Molecules

2002-08-05

arxiv.org/abs/quant-ph/0208025v1

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevLett.89.157901

A new physical implementation for quantum computation is proposed. The vibrational modes of molecules are used to encode qubit systems. Global quantum logic gates are realized using shaped femtosecond laser pulses which are calculated applying optimal control theory. The scaling of the system is favourable, sources for decoherence can be eliminated. A complete set of one and two quantum gates is presented for a specific molecule. Detailed analysis regarding experimental realization shows that the structural resolution of today's pulse shapers is easiliy sufficient for pulse formation.

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