Mainz 2017 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 31: Poster: Quantum Optics and Photonics I
Q 31.28: Poster
Dienstag, 7. März 2017, 17:00–19:00, P OG1+2
Geometric Phases in Light-Pulse Atom Interferometry — •Stephan Kleinert, Wolfgang P. Schleich, and the QUANTUS Team — Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQST), Universität Ulm
In the presence of a time-dependent Hamiltonian, a quantum state accumulates, apart from a dynamical phase, a geometric phase which solely depends on the topology of the projective Hilbert space.
We investigate the topological effects of the internal as well as the external degrees of freedom in atom interferometers. Within the general framework of the representation-free description of light-pulse atom interferometry [1] we separate the geometric phase from the dynamical phase contributions and propose an interferometer pulse sequence that measures the geometric phase.
The QUANTUS project is supported by the German Space Agency (DLR) with
funds provided by the Federal Ministry for Economics and Energy (BMWi) under grant number 50WM1556.
[1] S. Kleinert, et al., Representation-free description of light-pulse atom interferometry including non-inertial effects, Physics Reports 605, 1 (2015).