Gravity field mapping using laser-coupled quantum accelerometers in space

Lévèque, Thomas; Fallet, Christine; Mandea, Mioara; Biancale, R.; Lemoine, Jean‐Michel; Tardivel, Simon; Delavault, S.; Piquereau, A.; Bourgogne, Stéphane; Santos, F. Pereira Dos; Battelier, Baptiste; Bouyer, Ph.

doi:10.1007/s00190-020-01462-9

Cited by 28 publications

(25 citation statements)

References 42 publications

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“…The promise of atomic accelerometers for providing better long-term stability, i.e., smaller measurement noise at the lowest frequencies, below 10 mHz, will enable the reconstruction of the Earth gravity field to be improved [160,167,171] over many spherical harmonic degrees, as seen in Fig. 6 [172]. This shows the uncertainties in the gravity-field recovery as a function of spherical harmonic degree, evaluated in equivalent water height, considering quantum (black) or drifting (red) accelerometers in the left panel, and colour-coded in the right panels.…”

Section: Potential Gain In Earth Observation By Quantum Gravimetersmentioning

confidence: 99%

Cold Atoms in Space: Community Workshop Summary and Proposed Road-Map

Alonso,

Alpigiani,

Altschul

et al. 2022

Preprint

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We summarize the discussions at a virtual Community Workshop on Cold Atoms in Space concerning the status of cold atom technologies, the prospective scientific and societal opportunities offered by their deployment in space, and the developments needed before cold atoms could be operated in space. The cold atom technologies discussed include atomic clocks, quantum gravimeters and accelerometers, and atom interferometers. Prospective applications include metrology, geodesy and measurement of terrestrial mass change due to, e.g., climate change, and fundamental science experiments such as tests of the equivalence principle, searches for dark matter, measurements of gravitational waves and tests of quantum mechanics. We review the current status of cold atom technologies and outline the requirements for their space qualification, including the development paths and the corresponding technical milestones, and identifying possible pathfinder missions to pave the way for missions to exploit the full potential of cold atoms in space. Finally, we present a first draft of a possible roadmap for achieving these goals, that we propose for discussion by the interested cold atom, Earth Observation, fundamental physics and other prospective scientific user communities, together with ESA and national space and research funding agencies. research areas. As anticipated for a Europe-based event, about 80% of the registrations are from European countries, as seen in the lower right panel of Fig. 1, but there is also significant North American and Asian participation.This community provides the backbone for long-term planning and the support needed to see the challenging cold atom missions foreseen in the road-map through to their successful completions. The participants display an excellent and diverse mix of expertise, building an outstanding basis for the success of the workshop and the development of the corresponding road-map, which defines possible interim and long-term scientific goals and outlines technological milestones. Section 2 is an introduction to our document, Sections 3 to 5 discuss our main science themes, namely atomic clocks, Earth Observation and fundamental physics, Section 6 discusses the technology developments required before quantum sensors can be deployed in space, Section 7 summarises the discussions during the Workshop, and in Section 8 we outline the corresponding Community road-map.

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Section: Potential Gain In Earth Observation By Quantum Gravimetersmentioning

confidence: 99%

Cold Atoms in Space: Community Workshop Summary and Proposed Road-Map

Alonso,

Alpigiani,

Altschul

et al. 2022

Preprint

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show abstract

“…For cold atom systems, gradiometers often employ two ensembles of atoms injected into two interferometer paths vertically spaced apart [536,537].…”

Section: Quantum Sensing Of Gravity and Inertial Forcesmentioning

confidence: 99%

“…Such a scheme, employing accelerometers based on atom interferometry, has been proposed by Refs. [536,554]. A scheme of the two satellites housing accelerometers and the laser link is depicted in Fig.…”

Section: Earth-sensing With Cold-atomsmentioning

confidence: 99%

Quantum Physics in Space

Belenchia,

Carlesso,

Bayraktar

et al. 2021

Preprint

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Advances in quantum technologies are giving rise to a revolution in the way fundamental physics questions are explored at the empirical level. At the same time, they are the seeds for future disruptive technological applications of quantum physics. Remarkably, a space-based environment may open many new avenues for exploring and employing quantum physics and technologies. Recently, space missions employing quantum technologies for fundamental or applied studies have been proposed and implemented with stunning results.The combination of quantum physics and its space application is the focus of this review: we cover both the fundamental scientific questions that can be tackled with quantum technologies in space and the possible implementation of these technologies for a variety of academic and commercial purposes.

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“…Ultra-stable lasers provided in compact optical architecture are an important technological key for many embedded applications, such as gravitational wave detection in space, earth observations/gravity field mapping, ground to space or inter-satellites optical links, accurate laser ranging [1][2][3], etc… Nowadays, the requirements in terms of residual laser frequency noise, expressed in terms of Allan deviation, for many of these applications are in the range of 10 -14 -10 -15 , easily reached in a laboratory environment [4][5][6]. Our development is based on fibered telecom photonic components associated with a compact-monolithic spectroscopy optical bench.…”

Section: Introductionmentioning

confidence: 99%

Towards the development of a compact-monolithic optical assembly for Telecom laser frequency stabilization for LISA ground tests and other applications

Acef

Mehlman

Holleville

et al. 2021

International Conference on Space Optics — ICSO 2020

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We report on an ongoing development of a compact and transportable iodine frequency stabilized laser setup, based on compact and fibered Telecom components with a high technological readiness level (TRL). This laser system is being planned as a compact and easily transportable ultra-stable frequency reference for ground tests of the payload of LISA mission (Laser Interferometer Space Antenna) as part of the SYRTE laboratory contribution to the French activities carried out by a consortium of several partners lead by the French Space Agency (CNES) for assembly-integration and tests (AIVT) of the payload of LISA. This frequency reference will match the LISA requirements in terms of both residual frequency and intensity noise. The target residual frequency noise for this stabilized laser is below the nominal requirement for LISA, which is currently 30 Hz/ Hz. Thus, we propose to provide a tandem of 1064 nm laser sources phase-locked to an iodine stabilized Telecom laser operating at 1596 nm. The frequency gap between the telecom domain and the green range is bridged using a frequency tripling process based on two cascaded PPLN crystals, fully fibered. The compact design of the whole setup will make it easily transportable to different sites and could be readily used for ground tests of the LISA payload.

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Gravity field mapping using laser-coupled quantum accelerometers in space

Cited by 28 publications

References 42 publications

Cold Atoms in Space: Community Workshop Summary and Proposed Road-Map

Cold Atoms in Space: Community Workshop Summary and Proposed Road-Map

Quantum Physics in Space

Towards the development of a compact-monolithic optical assembly for Telecom laser frequency stabilization for LISA ground tests and other applications

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