Hannover 2016 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

Q: Fachverband Quantenoptik und Photonik

Q 58: Poster: Quantum Optics and Photonics IV

Q 58.28: Poster

Donnerstag, 3. März 2016, 16:30–19:00, Empore Lichthof

Collisional decoherence of polar molecules — •Kai Walter, Benjamin A. Stickler, and Klaus Hornberger — Faculty of Physics, University of Duisburg-Essen, Germany

Collisions with background gases are an important source of environmental decoherence in interference experiments with molecular matter waves [1]. So far, the theoretical description of this effect is limited to the case of isotropic interactions between the colliding pair [2]. However, the large molecules envisioned for future experiments [3] are typically characterized by a permanent dipole moment, implying an orientation-dependent interaction. We present a theoretical description of the decoherence of polar molecules due to collisions with environmental gas atoms. The result is discussed by considering a concrete far-field setup.

[1] Hornberger et al., Phys. Rev. Lett. 90, 160401 (2003)

[2] Hornberger et al., Phys. Rev. A, 70, 053608 (2004)

[3] Arndt et al., Nat. Phys. 10, 271 (2014)