AEDGE: Atomic experiment for dark matter and gravity exploration in space

Bertoldi, Andréa; Bongs, Kai; Bouyer, Philippe; Buchmueller, O. L.; Canuel, B.; Caramete, Laurentiu-Ioan; Chiofalo, Maria Luisa; Coleman, J.; Roeck, A. De; Ellis, John; Graham, Peter W.; Haehnelt, Martin G.; Hees, A.; Hogan, Jason; Klitzing, Wolf von; Krutzik, Markus; Lewicki, Marek; McCabe, Christopher; Peters, Achim; Rasel, Ernst M.; Roura, Albert; Sabulsky, Dylan O.; Schiller, S.; Schubert, Christian; Signorini, C.; Sorrentino, F.; Singh, Yeshpal; Tino, G. M.; Vaskonen, Ville; Zhan, Min

doi:10.1007/s10686-021-09701-3

Cited by 19 publications

(22 citation statements)

References 39 publications

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“…The possibility of establishing collaborations between Europe, US, and China on major future scientific missions should be investigated. 4 Further, synergies should be exploited between the atomic clock missions discussed here and the requirements for the AEDGE mission [5] discussed in Section 5, for which the same cold-strontium technology is envisaged.…”

Section: Recommendation: Road-map To Space Clocksmentioning

confidence: 99%

“…Optical clocks have also been proposed for gravitational wave detection [4,5,33]. A pair of clocks in drag-free satellites separated by a long-distance baseline share the interrogation laser via an optical link.…”

Section: Introductionmentioning

confidence: 99%

“…It built upon one organised two years ago [3], which reviewed the landscape of present and prospective cold atom experiments in space. Subsequently, several White Papers were submitted [4][5][6][7][8][9][10][11][12] in response to the Voyage 2050 call, which outlined possible ultimate goals and reviewed experiments and technical developments underway that could help pave a way towards these goals.…”

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confidence: 99%

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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: Recommendation: Road-map To Space Clocksmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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

Alonso,

Alpigiani,

Altschul

et al. 2022

Preprint

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“…The upcoming ESA Laser Inferometer Space Antenna (LISA 176 ) mission is sensitive to λ a few hundred million km (10 −3 Hz), comparable to astronomical units. New mission concepts were submitted for ESA's Voyage 2050 planning of Large Class science missions in the timeframe 2035-2050, which illustrated various laser and atomic interferometer designs covering f 10 −6 to 10 Hz [177][178][179][180] . We can also measure GW-induced motion of astrophysical bodies such as pulsars 181,182 (rotating neutron stars emitting pulses of radio emission) and stars 183 within our Galaxy to detect GW of λ tens of light-years (10 −9 Hz).…”

Section: Energy Density Spectrum Of Gwmentioning

confidence: 99%

New physics from the polarised light of the cosmic microwave background

Komatsu

2022

Preprint

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Cosmology requires new physics beyond the Standard Model of elementary particles and fields. What is the fundamental physics behind dark matter and dark energy? What generated the initial fluctuations in the early Universe? Polarised light of the cosmic microwave background (CMB) may hold the key to answers. In this article, we discuss two new developments in this research area. First, if the physics behind dark matter and dark energy violates parity symmetry, their coupling to photons rotates the plane of linear polarisation as the CMB photons travel more than 13 billion years. This effect is known as 'cosmic birefringence': space filled with dark matter and dark energy behaves as if it were a birefringent material, like a crystal. A tantalising hint for such a signal has been found with the statistical significance of 3σ . Next, the period of accelerated expansion in the very early Universe, called 'cosmic inflation', produced a stochastic background of primordial gravitational waves (GW). What generated GW? The leading idea is vacuum fluctuations in spacetime, but matter fields could also produce a significant amplitude of primordial GW. Finding its origin using CMB polarisation opens a new window into the physics behind inflation. These new scientific targets may influence how data from future CMB experiments are collected, calibrated, and analysed.

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“…Conventional light-pulse atom interferometry uses two-photon interactions, implemented by a pair of laser beams far-detuned from a strong optical line. However, some of the most demanding applications, such as ultralight dark matter searches [11,12] and gravitational wave detection [13][14][15][16][17][18], can benefit from the use of single-photon transitions like the ultra-narrow lines typically employed in optical lattice clocks [19][20][21]. LMT-enhanced clock atom interferometry, based on a sequence of single-photon transitions, was recently proposed [22] as a method to reach the required sensitivity while retaining the necessary level of laser noise suppression [23].…”

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confidence: 99%

Large Momentum Transfer Clock Atom Interferometry on the 689 nm Intercombination Line of Strontium

et al. 2020

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We report the first realization of large momentum transfer (LMT) clock atom interferometry. Using single-photon interactions on the strontium 1 S0 -3 P1 transition, we demonstrate Mach-Zehnder interferometers with state-of-the-art momentum separation of up to 141 k and gradiometers of up to 81 k. Moreover, we circumvent excited state decay limitations and extend the gradiometer duration to 50 times the excited state lifetime. Due to the broad velocity acceptance of the interferometry pulses, all experiments are performed with laser-cooled atoms at a temperature of 3 µK. This work has applications in high-precision inertial sensing and paves the way for LMT-enhanced clock atom interferometry in gravitational wave detection and dark matter search proposals. arXiv:1910.05459v1 [physics.atom-ph]

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AEDGE: Atomic experiment for dark matter and gravity exploration in space

Cited by 19 publications

References 39 publications

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

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

New physics from the polarised light of the cosmic microwave background

Large Momentum Transfer Clock Atom Interferometry on the 689 nm Intercombination Line of Strontium

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