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Journal Article

Quantum theory of continuum optomechanics

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Marquardt,  Florian
Marquardt Division, Max Planck Institute for the Science of Light, Max Planck Society;
Department of Physics, University of Erlangen-Nuremberg ;

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Rakich_2018_New_J._Phys._20_045005.pdf
(Publisher version), 663KB

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Thumbnail_2018_Rakich_ContinuumOptomechanics.png
(Supplementary material), 21KB

Citation

Rakich, P., & Marquardt, F. (2018). Quantum theory of continuum optomechanics. New Journal of Physics, 20: 045005. doi:10.1088/1367-2630/aaac4f.


Cite as: https://hdl.handle.net/21.11116/0000-0001-42AA-5
Abstract
We present the basic ingredients of continuum optomechanics, i.e. the suitable extension of cavity-optomechanical concepts to the interaction of photons and phonons in an extended waveguide. We introduce a real-space picture and argue which coupling terms may arise in leading order in the spatial derivatives. This picture allows us to discuss quantum noise, dissipation, and the correct boundary conditions at the waveguide entrance. The connections both to optomechanical arrays as well as to the theory of Brillouin scattering in waveguides are highlighted. Among other examples, we analyze the 'strong coupling regime' of continuum optomechanics that may be accessible in future experiments.