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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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3.
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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.
Fulltext: PDF;
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4.
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Conformal symmetry and nonlinear extensions of nonlocal gravity
/ Cusin, Giulia (Geneva U., CAP ; Geneva U., Dept. Theor. Phys.) ; Foffa, Stefano (Geneva U., CAP ; Geneva U., Dept. Theor. Phys.) ; Maggiore, Michele (Geneva U., CAP ; Geneva U., Dept. Theor. Phys.) ; Mancarella, Michele (CERN ; IPhT, Saclay ; Orsay)
We study two nonlinear extensions of the nonlocal $R\,\Box^{-2}R$ gravity theory. We extend this theory in two different ways suggested by conformal symmetry, either replacing $\Box^{-2}$ with $(-\Box + R/6)^{-2}$, which is the operator that enters the action for a conformally-coupled scalar field, or replacing $\Box^{-2}$ with the inverse of the Paneitz operator, which is a four-derivative operator that enters in the effective action induced by the conformal anomaly. [...]
arXiv:1602.01078.-
2016-04-19 - 16 p.
- Published in : Phys. Rev. D 93 (2016) 083008
Fulltext: 10.1103_PhysRevD.93.083008 - PDF; arXiv:1602.01078 - PDF; External link: Preprint
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5.
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Non-local gravity with a Weyl-square term
/ Cusin, Giulia (Geneva U., CAP ; Geneva U., Dept. Theor. Phys.) ; Foffa, Stefano (Geneva U., CAP ; Geneva U., Dept. Theor. Phys.) ; Maggiore, Michele (Geneva U., CAP ; Geneva U., Dept. Theor. Phys.) ; Mancarella, Michele (IPhT, Saclay ; Orsay ; CERN)
Recent work has shown that modifications of General Relativity based on the addition of a non-local term $R\,\Box^{-2}R$ produce a dynamical model of dark energy, which is cosmologically viable both at the background level and at the level of cosmological perturbations. We explore a more general class of models based on the addition of terms proportional to $R_{\mu\nu}\,\Box^{-2}R^{\mu\nu}$ and $C_{\mu\nu\rho\sigma}\, \Box^{-2}C^{\mu\nu\rho\sigma}$, where $C_{\mu\nu\rho\sigma}$ is the Weyl tensor. [...]
arXiv:1512.06373.-
2016-02-08 - 15 p.
- Published in : Phys. Rev. D 93 (2016) 043006
APS Open Access article: PDF; Fulltext: 10.1103_PhysRevD.93.043006 - PDF; arXiv:1512.06373 - PDF; External link: Preprint
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6.
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IGEC2: A 17-month search for gravitational wave bursts in 2005-2007
/ Astone, P. (INFN, Rome) ; Baggio, L. (LATMOS, Guyancourt) ; Bassan, M. (Rome U. ; INFN, Rome) ; Bignotto, M. (Padua U. ; INFN, Padua) ; Bonaldi, M. (IFN, Rome ; INFN, Padua) ; Bonifazi, P. (INFN, Rome ; INAF, Rome) ; Cavallari, G. (CERN) ; Cerdonio, M. (Padua U. ; INFN, Padua) ; Coccia, E. (Rome U. ; INFN, Rome) ; Conti, L. (INFN, Padua) et al.
We present here the results of a 515 days long run of the IGEC2 observatory, consisting of the four resonant mass detectors ALLEGRO, AURIGA, EXPLORER and NAUTILUS. The reported results are related to the fourfold observation time from Nov. [...]
arXiv:1002.3515.-
2010 - 10 p.
- Published in : Phys. Rev. D 82 (2010) 022003
APS Published version, local copy: PDF; Fulltext: PDF; External link: Preprint
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7.
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EXPLORER and NAUTILUS gravitational wave detectors : a status report
/ Astone, P (INFN, Rome) ; Ballantini, R (INFN, Genova) ; Babusci, D (INFN, Frascati ; Frascati) ; Bassan, M (Rome U., Tor Vergata ; INFN, Rome) ; Bonifazi, P (INFN, Rome ; INAF, Rome) ; Cavallari, G (CERN) ; Chincarini, A (INFN, Genova) ; Coccia, E (Rome U., Tor Vergata ; Gran Sasso) ; D'Antonio, S (INFN, Rome) ; Di Paolo Emilio, M (Gran Sasso ; Aquila U.) et al.
The two cryogenic resonant bar detectors of the ROG Collaboration, EXPLORER and NAUTILUS, have been taking data continuously with a high duty cycle for several years. We report here on the status of recent analysis of the data and in particular on the results of the burst searches in the year 2004..
2008
- Published in : Class. Quantum Gravity 25 (2008) 114048
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All-sky incoherent search for periodic signals with Explorer 2005 data
/ Astone, P. (INFN, Rome) ; Babusci, D. (Frascati) ; Bassan, M. (Rome U., Tor Vergata ; INFN, Rome2) ; Carelli, P. (INFN, Rome2) ; Cavallari, G. (CERN) ; Chincarini, A. (INFN, Genoa) ; Coccia, E. (Rome U., Tor Vergata ; INFN, Rome2) ; D'Antonio, S. (INFN, Rome2) ; Emilio, M.Di Paolo (Gran Sasso) ; Fafone, V. (Rome U., Tor Vergata ; INFN, Rome2) et al.
The data collected during 2005 by the resonant bar Explorer are divided into segments and incoherently summed in order to perform an all-sky search for periodic gravitational wave signals. The parameter space of the search spanned about 40 Hz in frequency, over 23927 positions in the sky. [...]
arXiv:0708.4367.-
2008 - 9 p.
- Published in : Class. Quantum Gravity 25 (2008) 114028
Preprint: PDF; External link: Fulltext
In : 18th International Conference on General Relativity and Gravitation, Sydney, Australia, 8 - 13 Jul 2007, pp.114028
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