Testing Screened Modified Gravity

Brax, Philippe; Casas, Santiago; Desmond, Harry; Elder, Benjamin D.

doi:10.48550/arxiv.2201.10817

Cited by 3 publications

(3 citation statements)

References 269 publications

(367 reference statements)

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“…Figure 10 shows examples of the present and prospective sensitivities of searches for linear couplings of ultralight scalar dark matter to photons (left panel) and electrons (right 11 See [213] for a recent review of screening mechanisms and experimental tests. 12 The EEP corresponds to the combination of the UFF/WEP with local position invariance and Lorentz invariance.…”

Section: Ultralight Dark Matter Detectionmentioning

confidence: 99%

Cold atoms in space: community workshop summary and proposed road-map

Alonso

Alpigiani

Altschul

et al. 2022

EPJ Quantum Technol.

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We summarise 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 road-map 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 the European Space Agency (ESA) and national space and research funding agencies.

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Section: Ultralight Dark Matter Detectionmentioning

confidence: 99%

Cold atoms in space: community workshop summary and proposed road-map

Alonso

Alpigiani

Altschul

et al. 2022

EPJ Quantum Technol.

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“…The juxtaposition of the dark energy and the absence of evidence for fifth forces are addressed by a range of screening mechanisms (see refs. [2][3][4] for a review) that aim to naturally suppress the DE scalar's dynamics in laboratory environments (terrestrial or planetary) where measurements should be readily available to constrain them. Put differently, an environmentally aware DE scalar field that responds either through its mass or inertia in relation to its surroundings can naturally avoid fifth force constraints.…”

Section: Introductionmentioning

confidence: 99%

Density dependent displaced vertex signatures as a novel probe of light dark sector scalars at the LHC

Argyropoulos,

Burrage,

Englert

2024

J. Cosmol. Astropart. Phys.

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Dynamical theories of dark energy predict new degrees of freedom with particular environmental sensitivity to avoid constraints on fifth forces. We show that the similar, yet complementary multi-purpose detector setup of the ATLAS and CMS experiments provides a unique opportunity to place sensitivity on such scenarios in a narrow, yet relevant parameter range. Furthermore, our investigation gives rise to a novel phenomenological signature that the LHC experiments can pursue to exploit their complementary detector design from a BSM perspective.

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“…two polarization modes of the graviton. In order to be consistent with the observational tests on smaller scales such as the scales of our solar system, a realistic modification of gravity should necessarily contain a physical mechanism -a screening mechanism to suppress the extra propagating scalar degrees of freedom on such scales [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Cosmological Number Counts under Disformal Transformations

Ghosh¹,

Francfort²,

Jain³

2022

Preprint

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We investigate whether true physical observables associated with the measurements of large scale structure in the universe are frame-independent. In particular, we study if cosmological observables such as the galaxy number counts and weak lensing observables are invariant under the disformal transformations. In a previous work, it was shown that this frame-invariance holds true for the case of conformal transformations. In this work, we find that although the cosmological number counts remain invariant under the disformal transformations, convergence and cosmic shear associated with the weak lensing potential are generally not invariant. Since the lightcone structure does not remain causal under disformal transformations, photon geodesics do not remain null anymore, and as a result, weak lensing observables are indeed affected. We also briefly comment on the disformal invariance of other cosmological observables.

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Testing Screened Modified Gravity

Cited by 3 publications

References 269 publications

Cold atoms in space: community workshop summary and proposed road-map

Cold atoms in space: community workshop summary and proposed road-map

Density dependent displaced vertex signatures as a novel probe of light dark sector scalars at the LHC

Cosmological Number Counts under Disformal Transformations

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