Dresden 2011 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 12: Quantum Dynamics, Decoherence, and Quantum Information II

DY 12.7: Vortrag

Dienstag, 15. März 2011, 12:00–12:15, ZEU 255

Probing quantum coherence in arrays of superconducting qubits — •Alexandra Liguori, Susana Huelga, and Martin Plenio — Institut f\"ur Theoretische Physik, Universit\"at Ulm, D-89069 Ulm, Germany

In the mid-80's the so-called phenomenon of dynamic localization was shown for a charged particle moving under the influence of a sinusoidally-varying time-dependent electric field, and more recently similar resonances in the conduction were found to be present also in ion channels. In this work we study the conditions under which this dynamic localization can be found in arrays of superconducting qubits. This phenomenon can serve as a signature of quantum coherence in such systems and moreover could be checked experimentally by various groups constructing arrays of superconducting flux qubits.