Universal gravitational waves from interacting and clustered solitons
Causal soliton formation (e.g. oscillons, Q-balls) in the primordial Universe is expected to give rise to a universal gravitational wave (GW) background, at frequencies smaller than scales of nonlinearity. We show that modifications of the soliton density field, driven by soliton interactions or ini...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269323007256 |
| _version_ | 1797363810658418688 |
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| author | Kaloian D. Lozanov Misao Sasaki Volodymyr Takhistov |
| author_facet | Kaloian D. Lozanov Misao Sasaki Volodymyr Takhistov |
| author_sort | Kaloian D. Lozanov |
| collection | DOAJ |
| description | Causal soliton formation (e.g. oscillons, Q-balls) in the primordial Universe is expected to give rise to a universal gravitational wave (GW) background, at frequencies smaller than scales of nonlinearity. We show that modifications of the soliton density field, driven by soliton interactions or initial conditions, can significantly enhance universal GWs. Gravitational clustering of solitons naturally leads to generation of correlations in the large-scale soliton density field. As we demonstrate for axion-like particle (ALP) oscillons, the growing power spectrum amplifies universal GW signals, opening new avenues for probing the physics of the early Universe with upcoming GW experiments. Our results are applicable to variety of scenarios, such as solitons interacting through a long range Yukawa-like fifth force. |
| first_indexed | 2024-03-08T16:26:17Z |
| format | Article |
| id | doaj.art-7070a83749e14ca59d98727157a710be |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-03-08T16:26:17Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-7070a83749e14ca59d98727157a710be2024-01-07T04:29:40ZengElsevierPhysics Letters B0370-26932024-01-01848138392Universal gravitational waves from interacting and clustered solitonsKaloian D. Lozanov0Misao Sasaki1Volodymyr Takhistov2Kavli Institute for the Physics and Mathematics of the Universe (WPI), UTIAS The University of Tokyo, Kashiwa, Chiba 277-8583, JapanKavli Institute for the Physics and Mathematics of the Universe (WPI), UTIAS The University of Tokyo, Kashiwa, Chiba 277-8583, Japan; Center for Gravitational Physics, Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan; Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei 10617, TaiwanInternational Center for Quantum-field Measurement Systems for Studies of the Universe and Particles (QUP, WPI), High Energy Accelerator Research Organization (KEK), Oho 1-1, Tsukuba, Ibaraki 305-0801, Japan; Theory Center, Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan; Kavli Institute for the Physics and Mathematics of the Universe (WPI), UTIAS The University of Tokyo, Kashiwa, Chiba 277-8583, Japan; Graduate University for Advanced Studies (SOKENDAI), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan; Corresponding author.Causal soliton formation (e.g. oscillons, Q-balls) in the primordial Universe is expected to give rise to a universal gravitational wave (GW) background, at frequencies smaller than scales of nonlinearity. We show that modifications of the soliton density field, driven by soliton interactions or initial conditions, can significantly enhance universal GWs. Gravitational clustering of solitons naturally leads to generation of correlations in the large-scale soliton density field. As we demonstrate for axion-like particle (ALP) oscillons, the growing power spectrum amplifies universal GW signals, opening new avenues for probing the physics of the early Universe with upcoming GW experiments. Our results are applicable to variety of scenarios, such as solitons interacting through a long range Yukawa-like fifth force.http://www.sciencedirect.com/science/article/pii/S0370269323007256 |
| spellingShingle | Kaloian D. Lozanov Misao Sasaki Volodymyr Takhistov Universal gravitational waves from interacting and clustered solitons Physics Letters B |
| title | Universal gravitational waves from interacting and clustered solitons |
| title_full | Universal gravitational waves from interacting and clustered solitons |
| title_fullStr | Universal gravitational waves from interacting and clustered solitons |
| title_full_unstemmed | Universal gravitational waves from interacting and clustered solitons |
| title_short | Universal gravitational waves from interacting and clustered solitons |
| title_sort | universal gravitational waves from interacting and clustered solitons |
| url | http://www.sciencedirect.com/science/article/pii/S0370269323007256 |
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