SAMOP 2021 – wissenschaftliches Programm

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SYAI: Symposium Trends in atom interferometry

SYAI 1: Trends in atom interferometry

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.

[1] S. Madkhaly et al., PRXQ in print, arXiv:2102.11874 (2021).

[2] N. Cooper et al., Additive Manufacturing, 40, 101898 (2021).

[3] E. da Ros et al., Phys. Rev. Res. 2, 033098 (2020).

[4] N. Cooper et al., Nat. Sci. Rep. 9, 7798 (2019).

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