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Terrestrial Very-Long-Baseline Atom Interferometry: Summary of the Second Workshop
/ Abdalla, Adam (Darmstadt, Tech. Hochsch.) ; Abe, Mahiro (Stanford U., Phys. Dept.) ; Abend, Sven (Leibniz U., Hannover) ; Abidi, Mouine (Leibniz U., Hannover) ; Aidelsburger, Monika (Munich, Max Planck Inst. Quantenopt. ; Munich U. ; Munich U., ASC ; MCQST, Munich) ; Alibabaei, Ashkan (Leibniz U., Hannover) ; Allard, Baptiste (LCAR, Toulouse) ; Antoniadis, John (Athens U.) ; Arduini, Gianluigi (CERN) ; Augst, Nadja (DLR, Berlin) et al.
This summary of the second Terrestrial Very-Long-Baseline Atom Interferometry (TVLBAI) Workshop provides a comprehensive overview of our meeting held in London in April 2024, building on the initial discussions during the inaugural workshop held at CERN in March 2023. [...]
arXiv:2412.14960.
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105.
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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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Mirage of Luminal Modified Gravitational-Wave Propagation
/ Romano, Antonio Enea (CERN ; ICRA, Pescara ; Antioquia U.) ; Sakellariadou, Mairi (King's Coll. London)
Using conformal invariance of gravitational waves, we show that for a luminal modified gravity theory, the gravitational-wave propagation and luminosity distance are the same as in general relativity. The relation between the gravitational-wave and electromagnetic-wave luminosity distance gets however modified for electromagnetism minimally coupled to the Jordan frame metric. [...]
arXiv:2302.05413; CERN-TH-2023-017; KCL-PH-TH-2023-08.-
2023-06-08 - 5 p.
- Published in : Phys. Rev. Lett. 130 (2023) 231401
Fulltext: 2302.05413 - PDF; Publication - PDF;
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Report of the Topical Group on Cosmic Probes of Fundamental Physics for for Snowmass 2021
/ Adhikari, Rana X. (Caltech) ; Anchordoqui, Luis A. (Lehman Coll. ; City Coll., N.Y. ; Amer. Museum Natural Hist.) ; Fang, Ke (Wisconsin U., Madison) ; Sathyaprakash, B.S. (Penn State U., University Park, IGC ; Penn State U., Astron. Astrophys. ; Cardiff U.) ; Tollefson, Kirsten (Michigan State U.) ; Lewis, Tiffany R. (NASA, Goddard) ; Engel, Kristi (Maryland U. ; Los Alamos) ; Aboubrahim, Amin (U. Munster) ; Akarsu, Ozgur (Istanbul, Tech. U.) ; Akrami, Yashar (Case Western Reserve U.) et al.
Cosmic Probes of Fundamental Physics take two primary forms: Very high energy particles (cosmic rays, neutrinos, and gamma rays) and gravitational waves. [...]
arXiv:2209.11726.
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118.
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Frontiers of Quantum Gravity: shared challenges, converging directions
/ de Boer, Jan (Amsterdam U.) ; Dittrich, Bianca (Perimeter Inst. Theor. Phys.) ; Eichhorn, Astrid (Southern Denmark U., CP3-Origins) ; Giddings, Steven B. (UC, Santa Barbara) ; Gielen, Steffen (Sheffield U.) ; Liberati, Stefano (SISSA, Trieste ; IFPU, Trieste ; INFN, Trieste) ; Livine, Etera R. (ENS, Lyon, Lab. Phys.) ; Oriti, Daniele (Munich U., ASC) ; Papadodimas, Kyriakos (CERN) ; Pereira, Antonio D. (Nijmegen U., IMAPP ; Niteroi, Fluminense U.) et al.
Understanding the quantum nature of spacetime and gravity remains one of the most ambitious goals of theoretical physics. [...]
arXiv:2207.10618.
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21 p.
eConf - Fulltext
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Cosmology with the Laser Interferometer Space Antenna
/ LISA Cosmology Working Group Collaboration
The Laser Interferometer Space Antenna (LISA) has two scientific objectives of cosmological focus: to probe the expansion rate of the universe, and to understand stochastic gravitational-wave backgrounds and their implications for early universe and particle physics, from the MeV to the Planck scale. However, the range of potential cosmological applications of gravitational wave observations extends well beyond these two objectives. [...]
arXiv:2204.05434; LISA CosWG-22-03; FERMILAB-PUB-22-349-SCD.-
2023-08-28 - 176 p.
- Published in : Living Rev. Relativ. 26 (2023) 5
Fulltext: jt - PDF; 2204.05434 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
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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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Detection of Early-Universe Gravitational Wave Signatures and Fundamental Physics
/ Caldwell, Robert (Dartmouth Coll.) ; Cui, Yanou (UC, Riverside) ; Guo, Huai-Ke (U. Utah, Salt Lake City) ; Mandic, Vuk (Minnesota U.) ; Mariotti, Alberto (Brussels U., IIHE) ; No, Jose Miguel (Madrid, IFT) ; Ramsey-Musolf, Michael J. (Shanghai Jiao Tong U.) ; Sakellariadou, Mairi (King's Coll. London) ; Sinha, Kuver (U. Oklahoma, Norman) ; Wang, Lian-Tao (Chicago U.) et al.
Detection of a gravitational-wave signal of non-astrophysical origin would be a landmark discovery, potentially providing a significant clue to some of our most basic, big-picture scientific questions about the Universe. In this white paper, we survey the leading early-Universe mechanisms that may produce a detectable signal -- including inflation, phase transitions, topological defects, as well as primordial black holes -- and highlight the connections to fundamental physics. [...]
arXiv:2203.07972.-
2022-11-30 - 67 p.
Fulltext: 2203.07972 - PDF; document - PDF; External link: eConf
In : 2021 Snowmass Summer Study, Seattle, WA, United States, 11 - 20 July 2021, pp.
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CLASS_GWB: robust modeling of the astrophysical gravitational wave background anisotropies
/ Bellomo, Nicola (Texas U. ; U. Barcelona (main)) ; Bertacca, Daniele (U. Padua (main) ; INFN, Padua ; Padua Observ.) ; Jenkins, Alexander C. (King's Coll. London) ; Matarrese, Sabino (U. Padua (main) ; INFN, Padua ; Padua Observ. ; GSSI, Aquila) ; Raccanelli, Alvise (U. Padua (main) ; INFN, Padua ; CERN) ; Regimbau, Tania (Annecy, LAPP) ; Ricciardone, Angelo (U. Padua (main) ; INFN, Padua) ; Sakellariadou, Mairi (King's Coll. London)
Gravitational radiation offers a unique possibility to study the large-scale structure of the Universe, gravitational wave sources and propagation in a completely novel way. Given that gravitational wave maps contain a wealth of astrophysical and cosmological information, interpreting this signal requires a non-trivial multidisciplinary approach. [...]
arXiv:2110.15059; KCL-PH-TH-2021-70.-
2022-06-27 - 58 p.
- Published in : JCAP 2206 (2022) 030
Fulltext: PDF;
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