Mainz 2017 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 48: Optomechanics I

Q 48.2: Talk

Thursday, March 9, 2017, 14:45–15:00, P 4

Orientational decoherence of nanoparticles — •Birthe Papendell, Benjamin A. Stickler, and Klaus Hornberger — Fakultät für Physik, Universität Duisburg-Essen

Motivated by trapping and cooling experiments with nonspherical nanoparticles [1-4] we discuss how their rotational quantum dynamics is affected by photon scattering or the interaction with a gaseous environment. We present the localization rate for gas collisions off a van der Waals-type potential and for Rayleigh scattering off a symmetric or an asymmetric dielectric nanoparticle. Finally we show in what sense the associated master equation describes angular momentum diffusion [5].

[1] S. Kuhn, P. Asenbaum, A. Kosloff, M. Sclafani, B. A. Stickler, S. Nimmrichter, K. Hornberger, O. Cheshnovsky, F. Patolsky, and M. Arndt, Nano Lett. 15, 5604 (2015).

[2] B. A. Stickler, S. Nimmrichter, L. Martinetz, S. Kuhn, M. Arndt, and K. Hornberger, Phys. Rev. A 94, 033818 (2016).

[3] T. M. Hoang, Y. Ma, J. Ahn, J. Bang, F. Robicheaux, Z.-Q. Yin, and T. Li, Phy. Rev. Lett. 117, 123604 (2016).

[4] S. Kuhn, A. Kosloff, B. A. Stickler, F. Patolsky, K. Hornberger, M. Arndt, and J. Millen, arxiv: 1608.07315 (2016).

[5] B. A. Stickler, B. Papendell, and K. Hornberger, Phys. Rev. A 94, 033828 (2016).