Stuttgart 2012 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 47: Quanteninformation: Atome und Ionen 2

Q 47.1: Vortrag

Donnerstag, 15. März 2012, 14:00–14:15, V7.02

Robust dynamical decoupling with concatenated continuous driving — •Jianming Cai1, Fedor Jelezko2, Martin Plenio1, and Alex Retzker11Institute of Theoretical Physics, University Ulm, Germany — 2Institute of Quantum Optics, University Ulm, Germany

The loss of coherence is one of the main obstacles for the implementation of quantum information processing. Here we introduce the concept of concatenated continuous dynamical decoupling, which can overcome not only external noise but also fluctuations in driving fields that implement the decoupling sequences and thus holds the potential for achieving relaxation limited coherence times. The proposed scheme can be applied to a wide variety of physical systems including, trapped atoms and ions, quantum dots and nitrogen-vacancy (NV) centers in diamond, and may be combined with other quantum technologies challenges such as quantum sensing or quantum information processing.

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