# Rotational optomechanical coupling of a spinning dielectric sphere

Source: [Rotational optomechanical coupling of a spinning dielectric sphere](<https://www.sota2.com/research/paper/68fa2b1e1e209131ce844174>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-27T03:17:15.272Z

Authors: H. K. Cheung, C. K. Law

Published: 2012-03-06T07:47:09.000Z

## Abstract

We formulate a non-relativistic Hamiltonian in order to describe how the rotational degrees of freedom of a dielectric sphere and quantized light fields are coupled. Such an interaction is shown to take a form of angular momentum coupling governed by the field angular momentum inside the dielectric. As a specific example, we show that the coupling due to a single whispering gallery mode can lead to precession dynamics and frequency shifts of light.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1203.1121>)

[PDF](<https://arxiv.org/pdf/1203.1121.pdf>)