Betreff: | DQ-mat Colloquium by Florian Schreck at LUH, 10. April 2025, 4 pm |
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Datum: | Fri, 4 Apr 2025 12:16:36 +0200 |
Von: | Anke Schmidt <anke.schmidt@DQ-MAT.UNI-HANNOVER.DE> |
Antwort an: | Anke Schmidt <anke.schmidt@DQ-MAT.UNI-HANNOVER.DE> |
An: | MEMBERS-DQMAT@LISTSERV.UNI-HANNOVER.DE |
Dear DQ-mat members and interested scientists,
We are are pleased to announce the next
colloquium which will take place on
Thursday, 10. April 2025
LUH, Building 1101, Room D326, Welfengarten 1,
30167 Hannover
16:00-17:30 Colloquium by Florian Schreck - University of Amsterdam, Netherlands
Title: Continuous Bose-Einstein condensation and superradiant clocks
Abstract:
Ultracold quantum gases are excellent platforms for quantum simulation and sensing. So far these gases have been produced using time-sequential cooling stages and after creation they unfortunately decay through unavoidable loss processes. This limits what can be done with them. For example it becomes impossible to extract a continuous-wave atom laser, which has promising applications for precision measurement through atom interferometry [1]. I will present how we achieve continuous Bose-Einstein condensation and create condensates (BECs) that persist in a steady-state for as long as we desire. Atom loss is compensated by feeding fresh atoms from a continuously replenished thermal source into the BEC by Bose-stimulated gain [2]. We are now using our new techniques also to tackle another challenge: the creation of continuously operating optical atomic clocks, which promise higher measurement bandwidth and better short term stability than traditional optical clocks that operate in a pulsed manner [3,4,5,6]. I will present our progress in building superradiant and zero-deadtime clocks.
References
Access data for the
transfer:
Zoom Access: https://us04web.zoom.us/j/932734874
This talk is part of the "Virtual Seminar on Precision Physics and Fundamental Symmetries" series and of the SFB DQ-mat colloquium series:https://indico.cern.ch/category/12183/
Best regard,
Anke Schmidt
-- Leibniz Universität Hannover DQ-Mat-Office, Room 308 Callinstraße 36 30167 Hannover Tel: +49 511 76214887 Fax: +49 511 76217243 Email: anke.schmidt@dq-mat.uni-hannover.de https://www.dq-mat.uni-hannover.de/ https://www.quest-lfs.uni-hannover.de/ https://www.hitec.uni-hannover.de/ https://www.quantumfrontiers.uni-hannover.de/ https://www.qvls.de