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Heidelberg 2015 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 2: Quantum Effects: Entanglement and Decoherence I

Q 2.6: Vortrag

Montag, 23. März 2015, 12:45–13:00, B/gHS

Squeezing in spin clusters and its optical detection — •Johannes Greiner, Philipp Neumann, and Jörg Wrachtrup — 3. Physikalisches Institut, Universität Stuttgart

Spin squeezing is of great interest for applications in quantum metrology and as a possible resource in quantum information. We examine the possibility to obtain squeezing in solid state spin clusters, in particular with the use of nitrogen-vacancy defects in diamond. Recent results have shown that the sensitivity of diamond based magnetometers can approach the order of spin projection noise. We discuss how spin squeezing can be used to go beyond this standard quantum limit.

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DPG-Physik > DPG-Verhandlungen > 2015 > Heidelberg