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    Prof. Dr. Jörg Wrachtrup: Quantum Sensors Made of Diamond

    Start date: 04 December, 2019
    Start time: 16:15
    End time: 18:00

    Organizer: Optics Colloquium
    Location: Building 101, Lecture Hall 00-036

    Description: 

     

    Prof. Dr. Jörg Wrachtrup
    University of Stuttgart, Institute for Quantum Science
    »Quantum Sensors Made of Diamond«

    Abstract:
    The accuracy of measurements is limited by quantum mechanics. Ingenious demonstrations, like measuring gravitational fields or time have explored accuracy limits and reached fundamental obstructions. Yet, precision measurements so far are restricted to macroscale and dedicated environments. In the talk I will discuss spin quantum sensors comprising a single electron spin plus a nuclear spin quantum register. With such a system we measure a variety of quantities including electric and magnetic fields, temperature, and force. We use nuclear spins to enhance the measurement accuracy of the electron spin e.g. via quantum error correction, as ancillary quantum bits for memory or quantum Fourier transformation. I will present a variety of applications ranging from biology to imaging of magnetic nanostructures.

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