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 θ with respect to each other [1]; and (ii) on the theory and experiment
on the Casimir force between interpenetrating gratings [2]. These findings pave the way to
the design of contactless quantum vacuum torsional spring and sensors with possible
relevance to micro and nanomechanical devices.
References
[1] Mauro Antezza, H. B. Chan, Brahim Guizal, V.N. Marachevsky, Riccardo Messina,
Mingkang Wang, Phys. Rev. Lett. 124, 013903 (2020)
[2] Mingkang Wang, L. Tang, C.Y. Ng, Riccardo Messina, Brahim Guizal, J. A. Crosse,
Mauro Antezza, C.T. Chan, H.B. Chan, Nature Communication 12, 600 (2021)