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Optomechanical sensing of spontaneous wave-function collapse

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons124270

Hammerer,  Klemens
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Volltexte (frei zugänglich)

1405.2868.pdf
(Preprint), 469KB

PhysRevLett.113_020405.pdf
(beliebiger Volltext), 349KB

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Zitation

Nimmrichter, S., Hornberger, K., & Hammerer, K. (2014). Optomechanical sensing of spontaneous wave-function collapse. Physical Review Letters, 113: 020405. doi:10.1103/PhysRevLett.113.020405.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0024-7702-6
Zusammenfassung
Quantum experiments with nanomechanical oscillators are regarded as a testbed for hypothetical modifications of the Schr\"{o}dinger equation, which predict a breakdown of the superposition principle and induce classical behavior at the macro-scale. It is generally believed that the sensitivity to these unconventional effects grows with the mass of the mechanical quantum system. Here we show that the opposite is the case for optomechanical systems in the presence of generic noise sources, such as thermal and measurement noise. We determine conditions for distinguishing these decoherence processes from possible collapse-induced decoherence in continuous optomechanical force measurements.