High-precision gravity measurements using atom interferometry

Peters, A.; Chung, Keng Yeow; Chu, Steven

doi:10.1088/0026-1394/38/1/4

Cited by 822 publications

(833 citation statements)

References 49 publications

(116 reference statements)

Supporting

Mentioning

794

Contrasting

Unclassified

Order By: Relevance

“…Fields that use this tool range from precision metrology 1 (development of frequency standards 2 and high-precision sensing, such as gravitometry 3 ) to trace analysis 4 and chemical sensing 5 . Characterizing and manipulating particles using light is also the foundation of modern fields such as quantum optics 6 , computing 7 and information processing 8,9 .…”

mentioning

confidence: 99%

Forbidden atomic transitions driven by an intensity-modulated laser trap

2015

View full text Add to dashboard Cite

Spectroscopy is an essential tool in understanding and manipulating quantum systems, such as atoms and molecules. The model describing spectroscopy includes the multipole-field interaction, which leads to established spectroscopic selection rules, and an interaction that is quadratic in the field, which is not often employed. However, spectroscopy using the quadratic (ponderomotive) interaction promises two significant advantages over spectroscopy using the multipole-field interaction: flexible transition rules and vastly improved spatial addressability of the quantum system. Here we demonstrate ponderomotive spectroscopy by using optical-lattice-trapped Rydberg atoms, pulsating the lattice light and driving a microwave atomic transition that would otherwise be forbidden by established spectroscopic selection rules. This ability to measure frequencies of previously inaccessible transitions makes possible improved determinations of atomic characteristics and constants underlying physics. The spatial resolution of ponderomotive spectroscopy is orders of magnitude better than the transition frequency would suggest, promising single-site addressability in dense particle arrays for quantum computing applications.

show abstract

mentioning

confidence: 99%

Forbidden atomic transitions driven by an intensity-modulated laser trap

2015

View full text Add to dashboard Cite

show abstract

“…Concerning issues related to atom interferometry, it also benefits from the different studies carried out within the HYPER project. Ground developments of cold atom interferometers have already shown performances comparable to state of the art optical interferometers [31,32]. Measurement of the gravity acceleration is limited on Earth to a few parts in 10 9 by environment effects: tides, atmospheric pressure and underground water fluctuations.…”

Section: Cold Atom Accelerometermentioning

confidence: 99%

Quantum physics exploring gravity in the outer solar system: the SAGAS project

et al. 2008

View full text Add to dashboard Cite

We summarise the scientific and technological aspects of the Search for Anomalous Gravitation using Atomic Sensors (SAGAS) project, submitted to ESA in June 2007 in response to the Cosmic Vision 2015-2025 call for proposals. The proposed mission aims at flying highly sensitive atomic sensors (optical clock, cold atom accelerometer, optical link) on a Solar System escape trajectory in the 2020 to 2030 time-frame. SAGAS has numerous science objectives in fundamental physics and Solar System science, for example numerous tests of general relativity and the exploration of the Kuiper belt. The combination of highly sensitive atomic sensors and of the laser link well adapted for large distances will allow measurements with unprecedented accuracy and on scales never reached before. We present the proposed mission in some detail, with particular emphasis on the science goals and associated measurements and technologies.

show abstract

“…Experiments to detect non-Newtonian gravitational potentials with multiple atom interferometers located at different distances from the Earth's center have been discussed by Mathevet et al ͑2002͒ andDimopoulos et al ͑2007͒. Experiments to search for a breakdown of the 1/r 2 law at micrometer length scales using atom interfer- Peters et al, 2001;Sasagawa et al, 2003͒.…”

Section: Tests Of Relativitymentioning

confidence: 99%

Optics and Interferometry with Atoms and Molecules

Schmiedmayer

2001

Atomic and Molecular Beams

View full text Add to dashboard Cite

Interference with atomic and molecular matter waves is a rich branch of atomic physics and quantum optics. It started with atom diffraction from crystal surfaces and the separated oscillatory fields technique used in atomic clocks. Atom interferometry is now reaching maturity as a powerful art with many applications in modern science. In this review the basic tools for coherent atom optics are described including diffraction by nanostructures and laser light, three-grating interferometers, and double wells on atom chips. Scientific advances in a broad range of fields that have resulted from the application of atom interferometers are reviewed. These are grouped in three categories: ͑i͒ fundamental quantum science, ͑ii͒ precision metrology, and ͑iii͒ atomic and molecular physics. Although some experiments with Bose-Einstein condensates are included, the focus of the review is on linear matter wave optics, i.e., phenomena where each single atom interferes with itself.

show abstract

High-precision gravity measurements using atom interferometry

Cited by 822 publications

References 49 publications

Forbidden atomic transitions driven by an intensity-modulated laser trap

Forbidden atomic transitions driven by an intensity-modulated laser trap

Quantum physics exploring gravity in the outer solar system: the SAGAS project

Optics and Interferometry with Atoms and Molecules

Contact Info

Product

Resources

About