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TT: Tiefe Temperaturen
TT 17: Postersitzung II: Transport, Quantenkoh
ärenz, Quantenflüssigkeiten
TT 17.17: Poster
Dienstag, 9. März 2004, 14:30–19:00, Poster A
Quantum holonomies with Josephson-junction devices — •Mateusz Cholascinski — Institut für Theoretische Festkörperphysik, Universität Karlsruhe, D-76128 Karlsruhe, Germany — Nonlinear Optics Division, Adam Mickiewicz University, 61614 Poznan, Poland
We examine properties of a Josephson-junction system composed of two coupled Cooper-pair boxes (charge qubits) as a candidate for observation of quantum holonomies. We construct a universal set of transformations in a two-fold degenerate ground state, and discuss the effects of noise in the system. The cheme can be applied to any system of two coupled qubits (independently of physical realization) provided the number of tunable parameters is sufficiently large.