Nonlinear Quantum Optics in Optomechanical Nanoscale Waveguides

Abstract

We explore the possibility of achieving a significant nonlinear phase shift among photons propagating in nanoscale waveguides exploiting interactions among photons that are mediated by vibrational modes and induced through Stimulated Brillouin Scattering (SBS). We introduce a configuration that allows slowing down the photons by several orders of magnitude via SBS involving sound waves and two pump fields. We extract the conditions for maintaining vanishing amplitude gain or loss for slowly propagating photons while keeping the influence of thermal phonons to the minimum. The nonlinear phase among two counter-propagating photons can be used to realize a deterministic phase gate.

11 pages, 6 figures

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• Squeezed States of Coupled Photons and Phonons in Nanoscale Waveguides
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• Phonon-Polaritons in Nanoscale Waveguides
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• Entangled Photons and Phonons via Inter-Modal Brillouin Scattering
• Slow Light through Brillouin Scattering in Continuum Quantum Optomechanics
• Memory Device for Photons by exploiting Brillouin Interactions in Nanowires