Journal
LIVING REVIEWS IN RELATIVITY
Volume 24, Issue 1, Pages -Publisher
SPRINGER INT PUBL AG
DOI: 10.1007/s41114-021-00032-5
Keywords
Ultra-high-frequency gravitational waves; Cosmological gravitational waves; Gravitational wave detectors; Fundamental physics with gavitational waves
Categories
Funding
- Australian Research Council Centre of Excellence for Gravitational Wave Discovery (OzGrav) [CE170100004]
- NSF [PHY-1806671, PHY-1806686]
- Center for Interdisciplinary Exploration and Research in Astrophysics at Northwestern University
- European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme [759253]
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [279384907 -SFB 1245, 138713538 - SFB 881, EXC 2121, 390833306]
- FAPESP/Brazil [1998/13468-9, 2006/56041-3]
- CNPq/Brazil [306467_2003_8, 303310_2009-0, 307176_2013-4, 302841/2017-2]
- Ramon y Cajal contract by Spanish Ministry MINECO [ORCID 0000-0002-4005-8915, RYC-2017-23493]
- grant 'SOM: Sabor y Origen de la Materia', from Spanish Ministry of Science and Innovation [FPA2017-85985-P]
- Heising-Simons Foundation
- W.M. Keck Foundation
- John Templeton Foundation
- ONR [N00014-18-1-2370]
- ARC [CE170100009, CE200100008, DP190100071]
- UKRI/EPSRC Stephen Hawking fellowship [EP/T017279/1]
- STFC [ST/P000681/1]
- Italian Ministry of Education, University and Research (MIUR) through the 'Dipartimenti di eccellenza' project Science of the Universe
- MIUR in Italy [PRIN 2015P5SBHT]
- ERC [267985]
- Swiss National Science Foundation [200020/175502]
- European Structural and Investment Funds
- Czech Ministry of Education, Youth and Sports [CoGraDS - CZ.02.1.01/0.0/0.0/15_003/0000437]
- ICTP
- Swiss National Science Foundation (SNF) [200020_175502] Funding Source: Swiss National Science Foundation (SNF)
- Australian Research Council [CE200100008] Funding Source: Australian Research Council
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The white paper outlines the challenges and gains expected in gravitational-wave searches, focusing on Ultra High-Frequency Gravitational Waves (UHF-GWs). The absence of known astrophysical sources in the UHF-GWs frequency range provides a unique opportunity to discover physics beyond the Standard Model. The report is a summary of a workshop held at ICTP Trieste, Italy, which set the stage for the Ultra-High-Frequency Gravitational Wave (UHF-GW) initiative.
The first direct measurement of gravitational waves by the LIGO and Virgo collaborations has opened up new avenues to explore our Universe. This white paper outlines the challenges and gains expected in gravitational-wave searches at frequencies above the LIGO/Virgo band, with a particular focus on Ultra High-Frequency Gravitational Waves (UHF-GWs), covering the MHz to GHz range. The absence of known astrophysical sources in this frequency range provides a unique opportunity to discover physics beyond the Standard Model operating both in the early and late Universe, and we highlight some of the most promising gravitational sources. We review several detector concepts that have been proposed to take up this challenge, and compare their expected sensitivity with the signal strength predicted in various models. This report is the summary of the workshop Challenges and opportunities of high-frequency gravitational wave detection held at ICTP Trieste, Italy in October 2019, that set up the stage for the recently launched Ultra-High-Frequency Gravitational Wave (UHF-GW) initiative.
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