Erlangen 2022 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 3: Precision Measurements and Metrology I
Q 3.4: Vortrag
Montag, 14. März 2022, 14:45–15:00, Q-H11
Effective Models for Atom-interferometry with Center-of-mass Motion in Quantized Electromagnetic Fields — •Alexander Friedrich1, Nikolija Momčilović1, Sabrina Hartmann1, and Wolfgang P. Schleich1,2 — 1Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQST), Universität Ulm, Albert-Einstein-Allee 11, 89069 Ulm, Germany — 2Institut für Quantentechnologien, Deutsches Zentrum für Luft- und Raumfahrt, Söflinger Str. 100, 89077 Ulm, Germany
Entanglement enhanced metrology promises to boost the sensitivity of quantum devices beyond the classical limit. Future atom interferometric gravitational wave detectors, tests of the equivalence principle or inertial sensors are already envisioned to employ these techniques to reach their full projected potential. However, proper characterization of the dynamic entanglement transfer between parts of the system due to the atom-light interaction requires a quantized description of the light field as well as the atomic degrees of freedom. Starting with a few-mode model of the light-field, coupled to a few-level atom with second quantized motional degrees of freedom we show: (i) how effective Jaynes-Cummings-Paul like multi-mode Rabi models can be derived for multi-photon interactions, and (ii) our approach and the resulting models are not limited to atom interferometry configurations but have possible applications ranging from cavity optomechanics to ion traps.
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.