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

Albers, H.; Herbst, Alexander; Richardson, L.; Heine, Hendrik; Nath, Dipankar; Hartwig, Jonas T.; Schubert, Christian; Vogt, Christian; Woltmann, Marian; Lämmerzahl, Cláus; Herrmann, Sven; Ertmer, W.; Rasel, Ernst M.; Schlippert, Dennis

doi:10.1140/epjd/e2020-10132-6

Cited by 37 publications

(29 citation statements)

References 76 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1a, b), which was employed as a differential gravimeter in the refs. 6,57 , comprises a Kasevich-Chu interferometer 17 . In a π/ 2 − π − π/2 pulse sequence, stimulated two-photon Raman transitions coherently split, redirect, and recombine matter waves of 87 Rb.…”

Section: Methodsmentioning

confidence: 99%

Optomechanical resonator-enhanced atom interferometry

et al. 2020

Self Cite

View full text Add to dashboard Cite

Matter-wave interferometry and spectroscopy of optomechanical resonators offer complementary advantages. Interferometry with cold atoms is employed for accurate and long-term stable measurements, yet it is challenged by its dynamic range and cyclic acquisition. Spectroscopy of optomechanical resonators features continuous signals with large dynamic range, however it is generally subject to drifts. In this work, we combine the advantages of both devices. Measuring the motion of a mirror and matter waves interferometrically with respect to a joint reference allows us to operate an atomic gravimeter in a seismically noisy environment otherwise inhibiting readout of its phase. Our method is applicable to a variety of quantum sensors and shows large potential for improvements of both elements by quantum engineering.

show abstract

Section: Methodsmentioning

confidence: 99%

Optomechanical resonator-enhanced atom interferometry

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…We start by comparing two ground-based 87 Rb gravimeters operated with thermal atoms or BECs, the source characteristics of which are similar to the ones reported in [5,11,27]. In both cases, the interrogation time 2T equals 150 ms and the wave front curvature radius is assumed to be R=2.3 km.…”

Section: Gravimetermentioning

confidence: 99%

“…This effect integrates down with the number of experiments n cycle following σ φMF,i = σ φMF / √ n cycle . (27) Once the number of cycles is determined by the desired performance, the associated integration time t int depends on the preparation time t prep and the interrogation time 2T:…”

mentioning

confidence: 99%

Inertial sensing with quantum gases: a comparative performance study of condensed versus thermal sources for atom interferometry

et al. 2021

View full text Add to dashboard Cite

Quantum sensors based on light pulse atom interferometers allow for measurements of inertial and electromagnetic forces such as the accurate determination of fundamental constants as the fine structure constant or testing foundational laws of modern physics as the equivalence principle. These schemes unfold their full performance when large interrogation times and/or large momentum transfer can be implemented. In this article, we demonstrate how interferometry can benefit from the use of Bose–Einstein condensed sources when the state of the art is challenged. We contrast systematic and statistical effects induced by Bose–Einstein condensed sources with thermal sources in three exemplary science cases of Earth- and space-based sensors. Graphic abstract

show abstract

“…Mass tests of EP have been performed in different ways including Lunar laser ranging 15 , torsion balance 16,17 , satellite 3 and AIs [4][5][6][7][8][9] . However, it is unknown whether the energy behaves the same as mass in a gravitational field although MEE holds at least at 10 -7 level 18 .…”

mentioning

confidence: 99%

“…In recent years, with the development of atomic manipulation technology, Atom-based quantum test of EP has become possible. As listed in Table 1, mass tests with atoms have been performed using Rb-87 Rb, 87 Rb-39 K and 88 Sr-87 Sr atom pairs [4][5][6][7][8][9]10 . Beyond-mass tests have been investigated using different quantum properties including quantum statistics 10 , spin 11,12 , superposition 12 and internal state 4,13 .…”

mentioning

confidence: 99%

A Mass-Energy United Test of the Equivalence Principle

Zhan

Zhang

et al. 2020

Preprint

View full text Add to dashboard Cite

The equivalence principle (EP) is one of the basic assumptions of general relativity. Almost all new theories[1] that attempt to unify gravity with the standard model[2] require the EP be broken. Experimental tests of EP provide opportunities for verification of different theoretical models and emergence of new physics. Traditional mass tests[3-9] of EP have achieved the precision of 10-15 level[3]. Tests with quantum properties including spin[10,11], superposition[12], quantum statistics[10] and internal state[4,13], have been performed, and entanglement[14] test was also proposed. Energy is another very important property and is related to mass by the mass-energy equivalence (MEE). However, mass-energy united tests of EP have never been carried out. Here, we achieve for the first time the united EP test covering energy interval from micro-eV to giga-eV by a mass and internal energy specified atom interferometer (AI). The AI was realized by taking advantage of the Four-Wave Double-diffraction Raman transition (4WDR) method[7] for specified internal energy states, and by extending 4WDR to include excited states. The Eötvös parameters of the four paired combinations (87Rb|F＝1>-85Rb|F＝2>, 87Rb|F＝2>-85Rb|F＝2>, 87Rb|F＝1>-85Rb|F＝3> and 87Rb|F＝2>-85Rb|F＝3>) were measured to be η1=(1.5±3.2)×10-10, η2=(-0.6 ±3.7)×10-10, η3=(-2.5±4.1)×10-10 and η4=(-2.7±3.6)×10-10, respectively. The violation parameters of mass and internal energy are constrained to η0 = (-0.8±1.4)×10-10 and β = (-0.6±6.9)×105. This work opens a door for united tests of EP and MEE in large energy range with quantum systems.

show abstract

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

Cited by 37 publications

References 76 publications

Optomechanical resonator-enhanced atom interferometry

Optomechanical resonator-enhanced atom interferometry

Inertial sensing with quantum gases: a comparative performance study of condensed versus thermal sources for atom interferometry

A Mass-Energy United Test of the Equivalence Principle

Contact Info

Product

Resources

About