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LISA Definition Study Report
/ Colpi, Monica (INFN, Milan Bicocca) ; Danzmann, Karsten (Hannover, Max Planck Inst. Grav.) ; Hewitson, Martin (Hannover, Max Planck Inst. Grav.) ; Jetzer, Philippe (U. Zurich (main)) ; Nelemans, Gijs (Nijmegen U., IMAPP) ; Petiteau, Antoine (IRFU, Saclay) ; Shoemaker, David (MIT, MKI) ; Sopuerta, Carlos (ICE, Bellaterra) ; Stebbins, Robin (Colorado U.) ; Tanvir, Nial (Leicester U.) et al.
The Laser Interferometer Space Antenna (LISA) is the first scientific endeavour to detect and study gravitational waves from space. [...]
arXiv:2402.07571.
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155.
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Science with the Einstein Telescope: a comparison of different designs
/ Branchesi, Marica (GSSI, Aquila ; Gran Sasso) ; Maggiore, Michele (Geneva U., Dept. Theor. Phys. ; Geneva U.) ; Alonso, David (Oxford U.) ; Badger, Charles (King's Coll. London) ; Banerjee, Biswajit (GSSI, Aquila ; Gran Sasso) ; Beirnaert, Freija (Gent U.) ; Belgacem, Enis (Geneva U.) ; Bhagwat, Swetha (Rome U. ; Birmingham U.) ; Boileau, Guillaume (U. Antwerp (main) ; ARTEMIS, Nice) ; Borhanian, Ssohrab (Jena U., TPI) et al.
The Einstein Telescope (ET), the European project for a third-generation gravitational-wave detector, has a reference configuration based on a triangular shape consisting of three nested detectors with 10 km arms, where in each arm there is a `xylophone' configuration made of an interferometer tuned toward high frequencies, and an interferometer tuned toward low frequencies and working at cryogenic temperature. Here, we examine the scientific perspectives under possible variations of this reference design. [...]
arXiv:2303.15923; ET-0084A-23.-
2023-07-28 - 197 p.
- Published in : JCAP 2307 (2023) 068
Fulltext: document - PDF; 2303.15923 - PDF;
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New horizons for fundamental physics with LISA
/ LISA Collaboration
The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders about the fundamental theory of nature at play in the extreme gravity regime, where the gravitational interaction is both strong and dynamical. In this white paper, the Fundamental Physics Working Group of the LISA Consortium summarizes the current topics in fundamental physics where LISA observations of GWs can be expected to provide key input. [...]
arXiv:2205.01597.-
2022-06-30 - 116 p.
- Published in : Living Rev. Relativ. 25 (2022) 4
Fulltext: 2205.01597 - PDF; document - PDF;
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Prospects for Fundamental Physics with LISA
/ LISA Collaboration
In this paper, which is of programmatic rather than quantitative nature, we aim to further delineate and sharpen the future potential of the LISA mission in the area of fundamental physics. Given the very broad range of topics that might be relevant to LISA, we present here a sample of what we view as particularly promising directions, based in part on the current research interests of the LISA scientific community in the area of fundamental physics. [...]
arXiv:2001.09793.-
2020-08-31 - 22 p.
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Parametrized black hole quasinormal ringdown. II. Coupled equations and quadratic corrections for nonrotating black holes
/ McManus, Ryan (Johns Hopkins U.) ; Berti, Emanuele (Johns Hopkins U.) ; Macedo, Caio F.B. (Para U.) ; Kimura, Masashi (Rikkyo U.) ; Maselli, Andrea (Rome U. ; INFN, Rome) ; Cardoso, Vitor (Lisbon, CENTRA ; CERN)
Linear perturbations of spherically symmetric spacetimes in general relativity are described by radial wave equations, with potentials that depend on the spin of the perturbing field. In previous work we studied the quasinormal mode spectrum of spacetimes for which the radial potentials are slightly modified from their general relativistic form, writing generic small modifications as a power-series expansion in the radial coordinate. [...]
arXiv:1906.05155.-
2019-08-30 - 16 p.
- Published in : Phys. Rev. D 100 (2019) 044061
Article from SCOAP3: PDF; Fulltext: PDF;
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Parametrized black hole quasinormal ringdown: Decoupled equations for nonrotating black holes
/ Cardoso, Vitor (IST, Lisbon (main) ; CERN) ; Kimura, Masashi (IST, Lisbon (main) ; Rikkyo U.) ; Maselli, Andrea (U. Rome La Sapienza (main) ; INFN, Rome) ; Berti, Emanuele (Johns Hopkins U. (main)) ; Macedo, Caio F.B. (Para U.) ; McManus, Ryan (Johns Hopkins U. (main))
Black hole solutions in general relativity are simple. The frequency spectrum of linear perturbations around these solutions (i.e., the quasinormal modes) is also simple, and therefore it is a prime target for fundamental tests of black hole spacetimes and of the underlying theory of gravity. [...]
arXiv:1901.01265.-
2019-05-29 - 11 p.
- Published in : Phys. Rev. D 99 (2019) 104077
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The Photon Spectrum of Asymmetric Dark Stars
/ Maselli, Andrea (INFN, Rome ; Rome U.) ; Kouvaris, Chris (Southern Denmark U., CP3-Origins ; CERN) ; Kokkotas, Kostas D. (Tubingen U., IAAT)
Asymmetric Dark Stars, i.e., compact objects formed from the collapse of asymmetric dark matter could potentially produce a detectable photon flux if dark matter particles self-interact via dark photons that kinetically mix with ordinary photons. The morphology of the emitted spectrum is significantly different and therefore distinguishable from a typical black-body one. [...]
arXiv:1905.05769; CERN-TH-2019-070; CP3-Origins-2019-20; DNRF90.-
2020-12-05 - 17 p.
- Published in : Int. J. Mod. Phys. D 30 (2021) 2150003
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From micro to macro and back: probing near-horizon quantum structures with gravitational waves
/ Maselli, Andrea (Rome U.) ; Pani, Paolo (Rome U. ; INFN, Rome) ; Cardoso, Vitor (U. Lisbon (main) ; CERN) ; Abdelsalhin, Tiziano (Rome U. ; INFN, Rome) ; Gualtieri, Leonardo (Rome U. ; INFN, Rome) ; Ferrari, Valeria (Rome U. ; INFN, Rome)
Supermassive binaries detectable by the future space gravitational-wave interferometer LISA might allow to distinguish black holes from ultracompact horizonless objects, even when the latter are motivated by quantum-gravity considerations. We show that a measurement of very small tidal Love numbers at the level of $10\%$ accuracy (as achievable with "golden binaries") may also allow to distinguish between different models of these exotic compact objects, even when taking into account an intrinsic uncertainty in the object radius putatively due to quantum mechanics. [...]
arXiv:1811.03689.-
2019-07-23 - 6 p.
- Published in : Class. Quantum Gravity 36 (2019) 167001
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Gravitational waves in massive gravity theories: waveforms, fluxes and constraints from extreme-mass-ratio mergers
/ Cardoso, Vitor (Lisbon, CENTRA ; Lisbon, IST ; CERN) ; Castro, Gonçalo (Lisbon, CENTRA ; Lisbon, IST) ; Maselli, Andrea (Lisbon, CENTRA ; Lisbon, IST)
Is the graviton massless? This problem was addressed in the literature at a phenomenological level, using modified dispersion relations for gravitational waves, in linearized calculations around flat space. Here, we perform a detailed analysis of the gravitational waveform produced when a small particle plunges or inspirals into a large non-spinning black hole. [...]
arXiv:1809.00673.-
2018-12-18 - 6 p.
- Published in : Phys. Rev. Lett. 121 (2018) 251103
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Black holes in an Effective Field Theory extension of GR
/ Cardoso, Vitor (Lisbon, CENTRA ; Lisbon, CFTP ; CERN) ; Kimura, Masashi (Lisbon, CENTRA ; Lisbon, CFTP) ; Maselli, Andrea (Lisbon, CENTRA ; Lisbon, CFTP) ; Senatore, Leonardo (KIPAC, Menlo Park ; SLAC ; Stanford U., Phys. Dept.)
Effective field theory methods suggest that some rather-general extensions of General Relativity include, or are mimicked by, certain higher-order curvature corrections, with coupling constants expected to be small but otherwise arbitrary. Thus, the tantalizing prospect to test the fundamental nature of gravity with gravitational-wave observations, in a systematic way, emerges naturally. [...]
arXiv:1808.08962.-
2018-12-21 - 6 p.
- Published in : Phys. Rev. Lett.
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