Internship offer : Moving a mechanical quantum object with a single photon
Laboratory Matériaux et Phénomènes Quantiques (UMR 7162)
Internship advisor: Adrien Borne and Ivan Favero
Internship location: Université Paris Diderot, 10 rue Alice Domon et Léonie Duquet, 75013 Paris
Optomechanics, the interaction between light and mechanical oscillators, is a burgeoning field of research at the interface of quantum optics, mesoscopic physics and mechanical micro/nano systems .
A single photon bouncing on a mirror exerts an extremely faint mechanical action, which has in practice never been observed. Recent experimental efforts in quantum optomechanics have however led to a giant increase of single photon effects. This is especially true in nano-optomechanical disk resonators, where the simultaneous confinement of light and mechanical motion in a sub-micron volume results in record strong optomechanical interaction .
In this internship, nano-optomechanics experiments at the single photon level are envisioned. Experiments will take place at ultra-low temperature, where the quantum nature of nanomechanical motion is accessible. Single photon injection and measurements will be employed to perturb the quantum mechanical trajectory and prepare specific states of motion, which are required for quantum sensing protocols and non-locality tests on distant mechanical resonators [3,4]. Conversely, the project will consider how to manipulate single photons with nanomechanical motion: reflect, modify, and route them.
 I. Favero, and K. Karrai. Nat. Phot. 3, 201 (2009). M. Aspelmeyer, Rev. Mod. Phys. 86, 1391 (2014)
 C. Baker, W. H, D.T.N, A.A, S. D, G. L and I. Favero. Opt. Express 22, 14072 (2014).
 E. Gil-Santos, C. B, A. L., C. G., G. Leo and I. Favero. Nature Communications 8, 14267 (2017).
 E. Gil-Santos, C. B, W. H, C. G, A. L, S. D, G. L and I. Favero Phys. Rev. Lett. 118, 063605 (2017).
Very motivated candidate, in master
Start date of the internship