Ultralight dark matter searches at the sub-Hz frontier with atom multigradiometry

Badurina, Leonardo; Gibson, V.; McCabe, Christopher; Mitchell, Jeremiah

doi:10.1103/physrevd.107.055002

Cited by 19 publications

(3 citation statements)

References 63 publications

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“…Light-pulse atom interferometry (LPAI) has demonstrated its versatility in a myriad of applications: Starting from measuring gravitational acceleration [1][2][3] and rotation 4 to field applications [5][6][7][8] and mobile gravimetry, 6 the measurement of Newton's gravitational constant 9 as well as the so-far most accurate determination of the fine structure constant. 10,11 In the last decade, there have been proposals for midband gravitational wave detection, [12][13][14] complementary to LIGO/ VIRGO and LISA, and recently, construction has started on first prototypes, which might be sensitive to ultra-light dark matter signals [15][16][17] and serve as testbeds for gravitational wave antennas [18][19][20] based on atom interferometry.…”

Section: Introductionmentioning

confidence: 99%

Finite pulse-time effects in long-baseline quantum clock interferometry

Janson,

Friedrich,

Lopp

2024

AVS Quantum Science

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Quantum-clock interferometry has been suggested as a quantum probe to test the universality of free fall and the universality of gravitational redshift. In typical experimental schemes, it seems advantageous to employ Doppler-free E1–M1 transitions which have so far been investigated in quantum gases at rest. Here, we consider the fully quantized atomic degrees of freedom and study the interplay of the quantum center-of-mass (COM)—that can become delocalized—together with the internal clock transitions. In particular, we derive a model for finite-time E1–M1 transitions with atomic intern–extern coupling and arbitrary position-dependent laser intensities. We further provide generalizations to the ideal expressions for perturbed recoilless clock pulses. Finally, we show, at the example of a Gaussian laser beam, that the proposed quantum-clock interferometers are stable against perturbations from varying optical fields for a sufficiently small quantum delocalization of the atomic COM.

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Section: Introductionmentioning

confidence: 99%

Finite pulse-time effects in long-baseline quantum clock interferometry

Janson,

Friedrich,

Lopp

2024

AVS Quantum Science

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“…If these backgrounds do not affect the sensitivity, the expected number of binaries for AEDGE will increase significantly, especially in the heavy-seed scenarios. For AION-1 km we have considered the low-noise model(Badurina et al 2023).…”

mentioning

confidence: 99%

Probing Supermassive Black Hole Seed Scenarios with Gravitational-wave Measurements

Ellis,

Fairbairn,

Urrutia

et al. 2024

ApJ

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The process whereby the supermassive black holes (SMBHs) populating the centers of galaxies have been assembled remains to be established, with the relative importance of seeds provided by collapsed Population III stars, black holes formed in nuclear star clusters via repeated mergers, or direct collapses of protogalactic disks yet to be determined. In this paper we study the prospects for casting light on this issue by future measurements of gravitational waves emitted during the inspirals and mergers of pairs of intermediate-mass black holes (IMBHs), discussing in particular the roles of prospective measurements by LISA and the proposed atom interferometers AION and AEDGE. We find that the expected number of detectable IMBH binaries is O ( 100 ) for LISA and AEDGE and O ( 10 ) for AION in low-mass seeds scenarios and goes down to O ( 10 ) for LISA and below one for AEDGE and AION in high-mass seed scenarios. This allows all of these observatories to probe the parameters of the seed model, in particular, if at least a fraction of the SMBHs arises from a low-mass seed population. We also show that the measurement accuracy of the binary parameters is, in general, best for AEDGE, which sees very precisely the merger of the binary.

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“…By reducing the repulsive forces driving the expansion after release from the trap, we achieve expansion energies well below 1 nK, which is necessary to match the requirements of proposed experiments, e.g. for, but not limited to, gravitational wave detection [59][60][61][62][63][64] , a test of the Weak Equivalence Principle 8,11,65 or the search for dark matter [66][67][68] . While the energies realized here are still an order of magnitude larger than in previous demonstrations in two 47 and three dimensions 48 , our method can be applied directly in the ODT.…”

mentioning

confidence: 99%

Matter-wave collimation to picokelvin energies with scattering length and potential shape control

Herbst,

Estrampes,

Albers

et al. 2024

Commun Phys

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The sensitivity of atom interferometers depends on their ability to realize long pulse separation times and prevent loss of contrast by limiting the expansion of the atomic ensemble within the interferometer beam through matter-wave collimation. Here we investigate the impact of atomic interactions on collimation by applying a lensing protocol to a 39K Bose-Einstein condensate at different scattering lengths. Tailoring interactions, we measure energies corresponding to (340 ± 12) pK in one direction. Our results are supported by an accurate simulation, which allows us to extrapolate a 2D ballistic expansion energy of (438 ± 77) pK. Based on our findings we propose an advanced scenario, which enables 3D expansion energies below 16 pK by implementing an additional pulsed delta-kick. Our results pave the way to realize ensembles with more than 1 × 105 atoms and 3D energies in the two-digit pK range in typical dipole trap setups without the need for micro-gravity or long baseline environments.

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Ultralight dark matter searches at the sub-Hz frontier with atom multigradiometry

Cited by 19 publications

References 63 publications

Finite pulse-time effects in long-baseline quantum clock interferometry

Finite pulse-time effects in long-baseline quantum clock interferometry

Probing Supermassive Black Hole Seed Scenarios with Gravitational-wave Measurements

Matter-wave collimation to picokelvin energies with scattering length and potential shape control

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