Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 53: Matter Wave Interferometry II
Q 53.7: Vortrag
Donnerstag, 13. März 2025, 12:30–12:45, HS I
All-optical squeezed BEC generation for microgravity operation — •Jan Simon Haase1 and The INTENTAS Team1,2,3,4,5,6,7 — 1Institut für Quantenoptik, Leibniz Universität Hannover — 2Institut für Transport- und Automatisierungstechnik, Leibniz Universität Hannover — 3Institut für Quantenphysik and Center for Integrated Quantum Science and Technology Ulm — 4Ferdinand-Braun-Institut Berlin — 5Institut für Angewandte Physik,Technische Universität Darmstadt — 6Deutsches Zentrum für Luft- und Raumfahrt e.V., Institut für Satellitengeodäsie und Inertialsensorik, Hannover — 7Humboldt Universität zu Berlin
Atom interferometers serve as high-precision sensors for quantities like acceleration, rotation, or magnetic fields. The sensitivity of atom interferometers is greatly enhanced by long interrogation times, as they are available in spaceborne applications. Second-long interrogation times favor the employment of atomic Bose-Einstein condensates (BECs) with their well-controlled spatial mode and their slow expansion rates. The sensitivity can be increased even further by employing squeezed atomic ensembles that enable measurements beyond the standards quantum limit. The INTENTAS project develops a source of entangled atoms that can be tested under microgravity conditions. Microgravity is provided by Hannover's Einstein Elevator, which offers up to 4s of free fall. A key feature is the fast all-optical BEC generation which is performed in a crossed-beam optical dipole trap. In this talk, the status of the project will be presented which includes fast BEC generation on ground and first results from microgravity tests.
Keywords: microgravity; BEC; spin squeezing; atom interferometry; INTENTAS