Related papers: Quantum test of the Universality of Free Fall using rubidium and potassium

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

URL: http://arxiv.org/abs/2003.00939v2
Date: Fri, 22 May 2020 10:58:20 GMT
Title: Quantum test of the Universality of Free Fall using rubidium and potassium
Authors: H. Albers, A. Herbst, L. L. Richardson, H. Heine, D. Nath, J. Hartwig, C. Schubert, C. Vogt, M. Woltmann, C. L\"ammerzahl, S. Herrmann, W. Ertmer, E. M. Rasel, D. Schlippert
Abstract summary: We report on an improved test of the Universality of Free Fall using a rubidium-potassium dual-species matter wave interferometer.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
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 E\"otv\"os ratio yields $\eta_{\,\text{Rb,K}}=-1.9\times10^{-7}$ with a combined standard uncertainty of $\sigma_\eta=3.2\times10^{-7}$.

Related papers

Probing Lambda-Gravity with Bose-Einstein Condensate [39.58317527488534]
A novel detector concept exploits the dynamics of quantum phononic excitations in a trapped Bose-Einstein condensate (BEC) The BEC exhibits sensitivity unique to the two key components of the gravitational potential in $Lambda$-gravity. This experiment could establish the best Earth-based upper limit on $Lambda$ at $10-31$ m$-2$, marking the first laboratory-based probe of the cosmological constant.
arXiv Detail & Related papers (2024-09-29T19:56:18Z)
Measurement of small photon numbers in circuit QED resonators [42.01857709446569]
Off-resonant interaction of fluctuating photons in a resonator with a qubit increases the qubit dephasing rate. We use this effect to measure a small average number of intracavity photons that are coherently or thermally driven.
arXiv Detail & Related papers (2023-10-25T02:40:56Z)
Finite Pulse-Time Effects in Long-Baseline Quantum Clock Interferometry [45.73541813564926]
We study the interplay of the quantum center-of-mass $-$ that can become delocalized $-$ together with the internal clock transitions. We show at the example of a Gaussian laser beam that the proposed quantum-clock interferometers are stable against perturbations from varying optical fields.
arXiv Detail & Related papers (2023-09-25T18:00:03Z)
Quantum Control of Atom-Ion Charge Exchange via Light-induced Conical Intersections [66.33913750180542]
Conical intersections are crossing points or lines between two or more adiabatic electronic potential energy surfaces. We predict significant or measurable non-adiabatic effects in an ultracold atom-ion charge-exchange reaction. In the laser frequency window, where conical interactions are present, the difference in rate coefficients can be as large as $10-9$ cm$3$/s.
arXiv Detail & Related papers (2023-04-15T14:43:21Z)
Photonic entanglement during a zero-g flight [0.0]
We implement a high-quality Bell experiment during a parabolic flight, transitioning from microgravity to hypergravity of 1.8 g. We observe Bell violation, with Bell-CHSH parameters between $S=-2.6202$ and $-2.7323$, an average of $overlineS = -2.680$, and average standard deviation of $overlineDelta S = 0.014$. This experiment demonstrates the stability of current quantum communication platforms for space-based applications.
arXiv Detail & Related papers (2023-03-23T11:31:55Z)
A matter wave Rarity-Tapster interferometer to demonstrate non-locality [1.9372327646250074]
We present an experimentally viable approach to demonstrating quantum non-locality in a matter wave system via a Rarity-Tapster interferometer. We use two $s$-wave scattering halos generated by colliding helium Bose-Einstein condensates.
arXiv Detail & Related papers (2022-06-17T05:42:20Z)
Testing the Universality of Free Fall using correlated $^{39}$K -- $^{87}$Rb interferometers [0.0]
We demonstrate how simultaneously-operated $39$K -- $87$Rb interferometers exhibiting a high level of correlation can be used to make competitive tests of the university of free fall. Main limitations to our measurement arise from a combination of wavefront aberrations, the quadratic Zeeman effect in $39$K, parasitic interferometers in $87$Rb, and the velocity sensitivity of our detection system.
arXiv Detail & Related papers (2021-10-25T21:13:47Z)
Gravitational Redshift Tests with Atomic Clocks and Atom Interferometers [55.4934126700962]
We characterize how the sensitivity to gravitational redshift violations arises in atomic clocks and atom interferometers. We show that contributions beyond linear order to trapping potentials lead to such a sensitivity of trapped atomic clocks. Guided atom interferometers are comparable to atomic clocks.
arXiv Detail & Related papers (2021-04-29T15:07:40Z)
Towards probing for hypercomplex quantum mechanics in a waveguide interferometer [55.41644538483948]
We experimentally investigate the suitability of a multi-path waveguide interferometer with mechanical shutters for performing a test for hypercomplex quantum mechanics. We systematically analyse the influence of experimental imperfections that could lead to a false-positive test result.
arXiv Detail & Related papers (2021-04-23T13:20:07Z)
Atom-interferometric test of the equivalence principle at the $10^{-12}$ level [1.59594089941013]
We measure the relative acceleration between $85$Rb and $87$Rb wave packets in the Earth's gravitational field. We find an E"otv"os parameter of $eta = [1.6; pm; 1.8; text(stat); pm ; 3.4 ; text(sys)] times 10-12$, consistent with zero violation of the equivalence principle.
arXiv Detail & Related papers (2020-05-23T23:58:05Z)

This list is automatically generated from the titles and abstracts of the papers in this site.