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Q: Fachverband Quantenoptik und Photonik
Q 54: Posters: Quantum Optics and Photonics IV
Q 54.11: Poster
Donnerstag, 12. März 2020, 16:30–18:30, Empore Lichthof
Atomic Raman diffraction from a relativistic perspective — •Butrint Pacolli1, Alexander Friedrich1, Enno Giese1, and Wolfgang P. Schleich1,2 — 1Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQST), Universität Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany — 2Institut für Quantentechnologien, Deutsches Zentrum für Luft- und Raumfahrt, Söflinger Str. 100, D-89077 Ulm, Germany
Atom interferometers are not only based on spatial superpositions of different branches that cause interference, but due to their internal structure they also possess an additional degree of freedom. The superposition of internal states has led to the concept of quantum clock interferometry [1] with the measurement of special-relativistic effects [2] and schemes susceptible to the gravitational redshift with transitions during the interferometer sequences [3]. One method to simultaneously manipulate both the external and internal degrees of freedom is Raman diffraction. For a consistent description, and to achieve the needed sensitivity for such measurements, this process has to be treated relativistically. We introduce a relativistic treatment for atomic Raman diffraction based on different masses associated with each internal state and discuss consequences for the diffraction process.
The QUANTUS project is supported by the German Aerospace Center (DLR) with funds provided by the Federal Ministry for Economic Affairs and Energy (BMWi) under grant number 50WM1956.
[1] Nat. Commun. 2, 505 (2011) [3] arXiv 1810.06744, (2018)
[2] Sci. Adv. 5, eaax8966 (2019)