A network of superconducting gravimeters as a detector of matter with feeble nongravitational coupling

Hu, Wenxiang; Lawson, Matthew; Budker, Dmitry; Figueroa, Nataniel L.; Kimball, Derek F. Jackson; Mills, A. P.; Voigt, Christian

doi:10.1140/epjd/e2020-10069-8

Cited by 13 publications

(10 citation statements)

References 21 publications

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“…Data from a network of sensitive superconducting gravimeters were analyzed in [334][335][336] searching for time-dependent signals that would be produced when dark matter interacts with the Earth. In this frame, also atom interferometry gravimeters could be used [337].…”

Section: Search For Dark Mattermentioning

confidence: 99%

Testing gravity with cold atom interferometry: results and prospects

Tino

2021

Quantum Sci. Technol.

103

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Atom interferometers have been developed in the last three decades as new powerful tools to investigate gravity. They were used for measuring the gravity acceleration, the gravity gradient, and the gravity-field curvature, for the determination of the gravitational constant, for the investigation of gravity at microscopic distances, to test the equivalence principle of general relativity and the theories of modified gravity, to probe the interplay between gravitational and quantum physics and to test quantum gravity models, to search for dark matter and dark energy, and they were proposed as new detectors for the observation of gravitational waves. Here I describe past and ongoing experiments with an outlook on what I think are the main prospects in this field and the potential to search for new physics.

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Section: Search For Dark Mattermentioning

confidence: 99%

Testing gravity with cold atom interferometry: results and prospects

Tino

2021

Quantum Sci. Technol.

103

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“…Karkowska and Wilde-Piórko (2019) have used raw gravity data from IGETS stations to study long-period surface waves. Very recently, first attempts have been made to apply the IGETS network for detection of dark matter (Horowitz and Widmer-Schnidrig 2020;McNally and Zelevinsky 2020;Hu et al 2019). Full studies of the only equatorial station, Djougou in Niger (Africa), were performed by Hinderer et al (2019Hinderer et al ( , 2020.…”

Section: Scientific Applications Of Igets Datamentioning

confidence: 99%

Achievements of the First 4 Years of the International Geodynamics and Earth Tide Service (IGETS) 2015–2019

Boy

Barriot

Förste

et al. 2020

International Association of Geodesy Symposia

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We present the activities and improvements of the International Geodynamics and Earth Tide Service (IGETS) over the last four years. IGETS collects, archives and distributes long time series from geodynamic sensor, in particular superconducting gravimeter data currently from more than 40 stations and 60 different sensors. In addition to the raw 1s and 1-min gravity and atmospheric pressure data (Level 1), IGETS produces end-user products on different levels. These include gravity and atmospheric pressure data corrected for major instrumental perturbations and ready for tidal analysis (Level 2). Since 2019, IGETS provides gravity residuals corrected for most geophysical contributions (Level 3) which can be used directly for geophysical applications without any expert knowledge in the processing of gravimetric time series.

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“…We advocate for the use of networks of sensors to search for these stochastic fluctuations. There are existing and proposed dark matter searches sensitive to these interactions using networks composed from a variety of sensor types such as atomic clocks [43,46,[48][49][50]63], atomic magnetometers [42,[57][58][59][60][61][64][65][66], gravimeters [67][68][69], laser interferometers [51,52,70], and atom interferometers [53].…”

Section: Introductionmentioning

confidence: 99%

Intensity interferometry for ultralight bosonic dark matter detection

Masia‐Roig¹,

Figueroa²,

Ariday³

et al. 2022

Preprint

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Ultralight bosonic dark matter (UBDM) can be described by a classical wave-like field oscillating at the Compton frequency of the bosons. If a measurement scheme for the direct detection of UBDM interactions is sensitive to a signature quadratic in the field, then there is a near-zero-frequency (dc) component of the signal. Thus, a detector with a given finite bandwidth can be used to search for bosons with Compton frequencies many orders of magnitude larger than its bandwidth. This opens the possibility of a detection scheme analogous to Hanbury Brown and Twiss interferometry. Assuming that the UBDM is virialized in the gravitational potential, for example of the Milky Way, the random velocities produce slight deviations from the Compton frequency. These result in stochastic fluctuations of the intensity on a time scale determined by the spread in velocities. In order to mitigate ubiquitous local low-frequency noise, a network of sensors can be used to search for the stochastic intensity fluctuations by measuring cross-correlation between the sensors. This method is inherently broadband, since a large range of Compton frequencies will have a nearzero-frequency component within the sensor bandwidth that can be searched for simultaneously. Experiments with existing clock and magnetometer networks have sufficient sensitivity to search a broad range of unexplored parameter space.

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A network of superconducting gravimeters as a detector of matter with feeble nongravitational coupling

Cited by 13 publications

References 21 publications

Testing gravity with cold atom interferometry: results and prospects

Testing gravity with cold atom interferometry: results and prospects

Achievements of the First 4 Years of the International Geodynamics and Earth Tide Service (IGETS) 2015–2019

Intensity interferometry for ultralight bosonic dark matter detection

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