SAMOP 2021 – wissenschaftliches Programm
SYAI 1.3: Hauptvortrag
Montag, 20. September 2021, 15:00–15:30, Audimax
3D printing methods for portable quantum technologies — •Lucia Hackermüller — University of Nottingham, UK
I will report on portable quantum devices based on 3D printing methods [1,2], suitable for atom interferometry in space, portable gravimeters or mobile quantum sensors. These enable SWAP (size weight and power) reductions by 80%, enhanced compactness and stability. I will also discuss prospects of creating high-atom number Bose-Einstein condensates, therefore bringing ultracold atom systems into a regime where they can act as a tool to probe quantum gravity.
In addition, I will report on hybrid quantum devices, incorporating both atoms and photons for quantum information and quantum computation applications. Compact, robust atom-photon interfaces enable scalable architectures for quantum computing and quantum communication, as well as chip-scale sensors and single-photon sources. Here, we demonstrate a new type of interface where atoms are trapped in a micromachined hole and show the interaction of cold cesium atoms with guided resonant photons [3,4]. We trap about 300 atoms at a temperature of 120µK. When the guided light is on resonance with the caesium D2 line, up to 87% of it is absorbed by the atoms. This is an excellent starting position to demonstrate photon storage or 4-wave mixing.
 S. Madkhaly et al., PRXQ in print, arXiv:2102.11874 (2021).
 N. Cooper et al., Additive Manufacturing, 40, 101898 (2021).
 E. da Ros et al., Phys. Rev. Res. 2, 033098 (2020).
 N. Cooper et al., Nat. Sci. Rep. 9, 7798 (2019).