Probing wave function collapse models with a classically driven mechanical oscillator

Ho, Melvyn and Lafont, Ambroise and Sangouard, Nicolas and Sekatski, Pavel. (2016) Probing wave function collapse models with a classically driven mechanical oscillator. New Journal of Physics, 18. 033025.

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We show that the interaction of a pulsed laser light with a mechanical oscillator through the radiation pressure results in an opto-mechanical entangled state in which the photon number is correlated with the oscillator position. Interestingly, the mechanical oscillator can be delocalized over a large range of positions when driven by an intense laser light. This provides a simple yet sensitive method to probe hypothetical post-quantum theories including an explicit wave function collapse model, like the Diosi & Penrose model. We propose an entanglement witness to reveal the quantum nature of this opto-mechanical state as well as an optical technique to record the decoherence of the mechanical oscillator. We also report on a detailed feasibility study giving the experimental challenges that need to be overcome in order to confirm or rule out predictions from explicit wave function collapse models.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Quantum Physics (Sangouard)
UniBasel Contributors:Sangouard, Nicolas
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:IOP Publishing
Note:Publication type according to Uni Basel Research Database: Journal article
edoc DOI:
Last Modified:20 Feb 2017 15:59
Deposited On:20 Feb 2017 15:59

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