Imaging-based Quantum Optomechanics
- URL: http://arxiv.org/abs/2407.07060v1
- Date: Tue, 9 Jul 2024 17:31:50 GMT
- Title: Imaging-based Quantum Optomechanics
- Authors: Christian M. Pluchar, Wenhua He, Jack Manley, Nicolas Deshler, Saikat Guha, Dalziel J. Wilson,
- Abstract summary: In active imaging protocols, information about a landscape is encoded into the spatial mode of a scattered photon.
We show that backaction in this setting arises from spatial photon shot noise, an effect that cannot be observed in single-mode optomechanics.
In conjunction with high-$Q$ nanomechanics, our findings point to new opportunities at the interface of quantum imaging and optomechanics.
- Score: 0.6025438902954768
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: In active imaging protocols, information about a landscape is encoded into the spatial mode of a scattered photon. A common assumption is that the landscape is rigid; however, in principle it can be altered by radiation pressure, a concept that has found fruitful application in the field of quantum optomechanics. Here we explore active imaging of a mechanical resonator with an eye to generalizing the concept of radiation pressure backaction to spatially multimode light. As a thought experiment, we consider imaging the flexural modes of a membrane by sorting the spatial modes of a laser reflected from its surface. We show that backaction in this setting arises from spatial photon shot noise, an effect that cannot be observed in single-mode optomechanics. We also derive the imprecision-backaction product for coherent illumination in the limit of purely spatial backaction, revealing it to be equivalent to the standard quantum limit for purely dispersive, single-mode optomechanical coupling. Finally, we show that optomechanical correlations due to spatial backaction can give rise to two-mode entangled light. In conjunction with high-$Q$ nanomechanics, our findings point to new opportunities at the interface of quantum imaging and optomechanics, including sensors and networks enhanced by spatial mode entanglement.
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