Heidelberg 2015 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 75: Matter Wave Optics II
Q 75.3: Vortrag
Freitag, 27. März 2015, 15:00–15:15, K/HS2
Theoretical description of light-pulse atom interferometry in generic potentials — •Wolfgang Zeller1, Albert Roura1, Wolfgang P. Schleich1, and the QUANTUS TEAM1,2,3,4,5,6,7,8,9 — 1Institut für Quantenphysik, Universität Ulm — 2Institut für Quantenoptik, LU Hannover — 3ZARM, Universität Bremen — 4Institut für Physik, HU Berlin — 5Institut für Laser-Physik, Universität Hamburg — 6Institut für angewandte Physik, TU Darmstadt — 7MUARC, University of Birmingham, UK — 8FBH, Berlin — 9MPQ, Garching
During the last few decades the excellent capabilities of light-pulse atom interferometers have been demonstrated in high-precision measurements of fundamental constants, inertial sensing and gravimetry. When increasing the interrogation time and the effective momentum transfer to improve the sensitivity, anharmonicities in external fields can give rise to non-negligible effects in high-precision measurements. In addition, if different internal states are involved (e.g. when using Raman scattering) the forces experienced by the atoms can be even state- and branch-dependent. In this talk we present a theoretical description [1,2] of light-pulse atom interferometers that accounts for those effects and highlight the consequences for the density profile and the contrast.
The QUANTUS project is supported by the German Space Agency DLR with funds provided by the Federal Ministry of Economics and Technology (BMWi) under grant number 50WM1136.
[1] Zeller, Roura and Schleich, in preparation.
[2] Roura, Zeller and Schleich, New J. Phys., in press, arXiv:1401.7699.