Casimir torque and force on gratings
Résumé
We will discuss recent results: (i) on the theory of the Casimir torque between two gratings rotated by an angle theta with respect to each other, and (ii) on the theory and experiment on the Casimir force between interpenetrating gratings. These findings pave the way to the design of contactless quantum vacuum torsional spring and sensors with possible relevance to micro and nanomechanical devices.