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Probing cosmic inflation with the LiteBIRD cosmic microwave background polarization survey

Allys, E; Arnold, K; Aumont, J; Aurlien, R; Azzoni, S; Baccigalupi, C; Banday, AJ; ... Zannoni, M; + view all (2023) Probing cosmic inflation with the LiteBIRD cosmic microwave background polarization survey. Progress of Theoretical and Experimental Physics , 2023 (4) , Article 042F01. 10.1093/ptep/ptac150. Green open access

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Abstract

LiteBIRD, the Lite (Light) satellite for the study of B-mode polarization and Inflation from cosmic background Radiation Detection, is a space mission for primordial cosmology and fundamental physics. The Japan Aerospace Exploration Agency (JAXA) selected LiteBIRD in May 2019 as a strategic large-class (L-class) mission, with an expected launch in the late 2020s using JAXA’s H3 rocket. LiteBIRD is planned to orbit the Sun–Earth Lagrangian point L2, where it will map the cosmic microwave background polarization over the entire sky for three years, with three telescopes in 15 frequency bands between 34 and 448 GHz, to achieve an unprecedented total sensitivity of 2.2 μK-arcmin, with a typical angular resolution of 0.5◦ at 100 GHz. The primary scientific objective of LiteBIRD is to search for the signal from cosmic inflation, either making a discovery or ruling out well-motivated inflationary models. The measurements of LiteBIRD will also provide us with insight into the quantum nature of gravity and other new physics beyond the standard models of particle physics and cosmology. We provide an overview of the LiteBIRD project, including scientific objectives, mission and system requirements, operation concept, spacecraft and payload module design, expected scientific outcomes, potential design extensions, and synergies with other projects.

Type: Article
Title: Probing cosmic inflation with the LiteBIRD cosmic microwave background polarization survey
Open access status: An open access version is available from UCL Discovery
DOI: 10.1093/ptep/ptac150
Publisher version: http://dx.doi.org/10.1093/ptep/ptac150
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third-party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Keywords: Science & Technology, Physical Sciences, Physics, Multidisciplinary, Physics, Particles & Fields, Physics, B-MODE POLARIZATION, PRE-LAUNCH STATUS, HALF-WAVE PLATE, PRIMORDIAL MAGNETIC-FIELDS, ALL-SKY SURVEY, ATACAMA COSMOLOGY TELESCOPE, 1ST-ORDER PHASE-TRANSITION, INTERGALACTIC GAS-PRESSURE, SUNYAEV-ZELDOVICH SIGNAL, 500 SQUARE DEGREES
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics
URI: https://discovery.ucl.ac.uk/id/eprint/10200668
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