Dresden 2011 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
Q: Fachverband Quantenoptik und Photonik
Q 25: Matter Wave Optics
Q 25.8: Talk
Wednesday, March 16, 2011, 12:15–12:30, BAR Schön
Simple description of atom interferometry with Bose-Einstein condensates — •Endre Kajari1,2, Stefan Arnold2, Daniela Moll2, Wolfgang P. Schleich2, and the QUANTUS Team3,4,5,6,7,8,9,10 — 1Theoretische Physik, Universität des Saarlandes — 2Institut für Quantenphysik, Universität Ulm — 3Institut für Quantenoptik, LU Hannover — 4ZARM, Universität Bremen — 5Institut für Physik, HU Berlin — 6Institut für Laser-Physik, Universität Hamburg — 7Institut für angewandte Physik, TU Darmstadt — 8Midlands Ultracold Atom Research Centre, University of Birmingham, UK — 9FBH, Berlin — 10MPQ, Garching
In this talk we present the theoretical formalism used in the analysis of the long-time evolution of Bose-Einstein condensates in microgravity [1]. Starting from a natural generalization of the scaling approach [2] which addresses time-dependent rotating traps, we identify the range of application of this description, introduce a Hamilton formalism for the new dynamical variables, and point out the connection to the constants of motion of the Gross-Pitaevskii equation. Since this approach provides us with an accurate phase evolution of the macroscopic wave function as well, it represents a valuable tool for the description of atom interferometry with Bose-Einstein condensates.
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 DLR 50 WM 1136.
T. van Zoest et al., Science 328, 1540 (2010).
Y. Castin and R. Dum, Phys. Rev. Lett. 77, 5315 (1996).