Mission Design of LiteBIRD

By T. Matsumura, Y. Akiba, J. Borrill, Y. Chinone, M. Dobbs, H. Fuke, A. Ghribi, M. Hasegawa, K. Hattori, M. Hattori and 59 more. 2013

391 citations recorded by the source corpus.

LiteBIRD is a next-generation satellite mission to measure the polarization of the cosmic microwave background (CMB) radiation. On large angular scales the B-mode polarization of the CMB carries the imprint of primordial gravitational waves, and its precise measurement would provide a powerful probe of the epoch of inflation. The goal of LiteBIRD is to achieve a measurement of the characterizing tensor to scalar ratio $$r$$r to an uncertainty of $$\delta r=0.001$$δr=0.001. In order to achieve this goal we will employ a kilo-pixel superconducting detector array on a cryogenically cooled sub-Kelvin focal plane with an optical system at a temperature of 4 K. We are currently considering two detector array options; transition edge sensor (TES) bolometers and microwave kinetic inductance detectors. In this paper we give an overview of LiteBIRD and describe a TES-based polarimeter designed to achieve the target sensitivity of 2 $$\upmu $$μK arcmin over the frequency range 50–320 GHz.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/44307b4b57a7fbacf97d3e74f787048f650464bc

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Citations in the corpus

Primordial black hole dark matter from single field inflation (2017, background): “03, within the planned reach of future experiments such as CMB-S4 [77] and LiteBird [78].”
Standard Model—axion—seesaw—Higgs portal inflation. Five problems of particle physics and cosmology solved in one stroke (2016, neutral): “Planned probes of B-modes could reach a sensitivity of ∆r ≃ 10−3 [124] or even ∆r ≃ 5× 10−4 [125].”
LiteBIRD satellite: JAXA's new strategic L-class mission for all-sky surveys of cosmic microwave background polarization (2020, neutral): “Examples include: (1) characterization of B modes and searches for source fields, such as scale-invariance, non-Gaussianity, and parity violation; (2) power-spectrum features in polarization; (3) cosmic-variance-limited measurements of large-scale (low-`) E modes, with implications for the reionizat”
New experimental approaches in the search for axion-like particles (2018, neutral): “The LiteBIRD [236] and PRISM [237] missions could measure down to HI ∼ 4×1012 GeV.”
Updated results on neutrino mass and mass hierarchy from cosmology with Planck 2018 likelihoods (2019, methodology): “Solving the ALens anomaly with a statistical significance of 5σ or more requires more precise measurement of the E and B mode polarization of the CMB photons in small scales, which will be possible with future CMB experiments like LiteBIRD [71] (space based); and stage III ground based experiments, ”
Status of Neutrino Properties and Future Prospects—Cosmological and Astrophysical Constraints (2017, background): “Future CMB missions—including Advanced ACTPol [28], SPT-3G [29], CMB Stage-IV [30], Simons Observatory1, Simons Array [31], CORE [32], LiteBIRD [33], PIXIE [34]—will test the Universe over a wide range of scales with unprecedented accuracy.”