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Berlin 2018 – scientific programme

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MA: Fachverband Magnetismus

MA 21: Poster I

MA 21.109: Poster

Tuesday, March 13, 2018, 09:30–13:00, Poster A

Investigation of decoherence in 2-qubit systems realized as magnetic molecules — •Patrick Vorndamme and Jürgen Schnack — Universität Bielefeld, PF 100131, D-33501 Bielefeld

Magnetic molecules are considered as promising constituents of quantum simulators or quantum computers. At low temperatures the magnetic levels of molecular nanomagnets enable the use as qubits. For such an application the investigation and understanding of decoherence caused by external and internal effects is very important. Here we aim at a better understanding of the diverse aspects of decoherence by investigating experimentally relevant notions of decoherence in unitary time evolutions of finite-size closed systems of interacting electronic as well as nuclear spins. We examine the behavior of the qubits and related observables as a function of the considered interactions (SU(2) symmetric or dipolar) and the properties of the nuclear spin bath.

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