Quantum optomechanics in a liquid

Abstract

Optomechanical systems provide a means for studying and controlling quantum effects in the motion of macroscopic objects. To date, quantum optomechanical effects have been studied in objects made from solids and gases. Here we describe measurements of quantum behavior in the vibrations of a liquid body. Specifically, we monitor the fluctuations of an individual acoustic standing wave in superfluid liquid helium, and find that it displays the characteristic signatures of zero-point motion and measurement back-action. This opens the possibility of exploiting the properties of liquids in general (and superfluid helium in particular) to access qualitatively new regimes of quantum optomechanics.

53 pages, 15 figures, 1 table (including supplementary information)

References in corpus (8)

• Optomechanically induced transparency
• Observation and interpretation of motional sideband asymmetry in a quantum electro-mechanical device
• Cavity Optomechanics in a Levitated Helium Drop
• Observability of radiation pressure shot noise in optomechanical systems
• Transition to ballistic regime for heat transport in helium II
• Heterodyne photodetection measurements on cavity optomechanical systems: Interpretation of sideband asymmetry and limits to a classical explanation
• Photothermal optomechanics in superfluid helium coupled to a fiber-based cavity
• Theory of Optomechanical Interactions in Superfluid He

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