Constraints on measurement-based quantum computation in effective cluster states.

Phys Rev Lett

Lehrstuhl für Theoretische Physik I, Otto-Hahn-Straße 4, TU Dortmund, D-44221 Dortmund, Germany.

Published: June 2012

The aim of this work is to study the physical properties of a one-way quantum computer in an effective low-energy cluster state. We calculate the optimal working conditions as a function of the temperature and of the system parameters. The central result of our work is that any effective cluster state implemented in a perturbative framework is fragile against special kinds of external perturbations. Qualitative aspects of our work are important for any implementation of effective low-energy models containing strong multisite interactions.

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http://dx.doi.org/10.1103/PhysRevLett.108.230508DOI Listing

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