Quantum test of the Universality of Free Fall using rubidium and potassium

authored by

H. Albers, A. Herbst, L. L. Richardson, H. Heine, D. Nath, J. Hartwig, C. Schubert, M. Woltmann, C. Lämmerzahl, S. Herrmann, W. Ertmer, E. M. Rasel, D. Schlippert, Christian Vogt

Abstract

Abstract: We report on an improved test of the Universality of Free Fall using a rubidium-potassium dual-species matter wave interferometer. We describe our apparatus and detail challenges and solutions relevant when operating a potassium interferometer, as well as systematic effects affecting our measurement. Our determination of the Eötvös ratio yields η

_Rb,K = −1.9 × 10

⁻⁷ with a combined standard uncertainty of σ

_η= 3.2 × 10

⁻⁷. Graphical abstract: [Figure not available: see fulltext.]

Organisation(s)

Institut für Quantenoptik
Institut für Umweltplanung
QuantumFrontiers
SFB 1227: Designte Quantenzustände der Materie (DQ-mat)

External Organisation(s)

Universität Bremen
BIAS - Bremer Institut für Angewandte Strahltechnik GmbH

Type

Artikel

Journal

European Physical Journal D

Volume

74

No. of pages

11

ISSN

1434-6060

Publication date

07.07.2020

Publication status

Veröffentlicht

ASJC Scopus Sachgebiete

Atom- und Molekularphysik sowie Optik

Electronic version(s)

https://doi.org/10.48550/arXiv.2003.00939 (Access: Offen)
https://doi.org/10.1140/epjd/e2020-10132-6 (Access: Offen)