CMB B-mode - NEXT

Name: CMB B-mode - NEXT
Start: 2025-01-27T09:30:00+09:00
End: 2025-01-29T18:00:00+09:00
Location: KEK, Tsukuba - Building 3

27 janv. 2025, 09:30 → 29 janv. 2025, 18:00 Asia/Tokyo

Seminar Hall (KEK, Tsukuba - Building 3)

Seminar Hall

KEK, Tsukuba - Building 3

1 Oho, Tsukuba, Ibaraki 300-3256

Guillaume Patanchon (ILANCE), Masaya Hasegawa (KEK-IPNS)

Description

This workshop is organized as a collaboration between:

CMB-Inflate program - funded by European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 101007633,
JSPS Core-to-core Program - Exploration of the origin and evolution of matter and space time: a research consortium for cosmic microwave background, PI Akito Kusaka,
The KEK Institute of Particle and Nuclear Studies KEK-IPNS,
The International Center for Quantum-field Measurement Systems for Studies of the Universe and Particles WPI-QUP.

The goals of this workshop are:

Review the latest results in CMB science
Define synergies between space-based and ground-based CMB measurements, data analysis, component separation and instrument development and modeling.
Following the core principles of the CMB-Inflate and Core-to-core programs, create strong international bonds between researchers and promote younger generations.

Zoom link for remote attendance:

https://us02web.zoom.us/j/87235264445?pwd=zr3hL6sKfHAllimokbcu5mJ6bRwOax.1
Meeting ID: 872 3526 4445
Passcode: 236700

Contact

tomma@post.kek.jp

Inscription

Registration form

lun. 27 janvier
- 09:30
  
  Coffee
- 1
  
  Logistics
  
  Orateur: Tommaso Ghigna (QUP-KEK)
  
  Welcome & Logistics
- 2
  
  Opening Remarks
  
  Orateur: Prof. Naohito Saito (KEK-IPNS)
- 3
  
  CMB Polarization measurements with BICEP/Keck
  
  Orateur: Kimmy Wu (SLAC National Accelerator Laboratory)
  
  BICEP/Keck
- 4
  
  Simons Observatory
  
  Orateur: Junna Sugiyama (University of Tokyo)
  
  Simons Observatory
- 10:50
  
  Coffee Break
- 5
  
  CMB-S4
  
  Orateur: Clarence Chang (Argonne)
  
  CMB-S4
- 6
  
  LiteBIRD mission and its status
  
  Orateur: Ryuichi Fujimoto (ISAS-JAXA)
  
  LiteBIRD Status
- Poster Session
- 7
  
  IPNS Seminar: Observing the First Light in the Universe, from the Earth and from the Sky
  
  Since Penzias and Wilson discovered the cosmic microwave background (CMB) in 1964, observation of CMB has been central to the development of modern and precision cosmology. Combined with other probes, it has told us so many things about the Universe - how the Universe began, how the Universe has evolved, what the universe is made of, and still, how many questions are unsolved about the Universe. Throughout its history, the CMB observation has gone through a unique progression - ground-based telescopes, balloon-borne telescopes, and space missions have helped one another and contributed to scientific advancement in their own ways. I am new to the field compared to the history, and I may be out of my depth, but I will make my attempt to review this history and the nature of the CMB observation to realize the synergy between the observations from the ground and the sky. This leads us to the discussion relevant today: how the CMB observations from the ground and the sky may work together now and in the future. I will review the synergies and complementarity between these different approaches, with a focus on CMB polarization measurements, and conclude with a promising outlook for the field.
  
  Orateur: Akito Kusaka (University of Tokyo)
  
  Akito's IPNS Seminar
- 8
  
  Birefringence
  
  Orateur: Ippei Obata (Kavli IPMU)
  
  Birefringence
- 9
  
  CMB detectors & readout and how to model them in data analysis
  
  Orateur: Tijmen de Haan (KEK-IPNS & QUP)
  
  Detector and Readout
- 15:30
  
  Coffee Break
- 10
  
  Synergy Between CMB and LSS
  
  Orateur: Hironao Miyatake (Nagoya University)
  
  CMB x LSS
- 11
  
  Synergy Between Space and Ground Based Observations: Instruments
  
  Orateur: Aritoki Suzuki (LBNL)
  
  Synergy Instrument
- 12
  
  Synergy Between Space and Ground Based Observations: Data Analysis
  
  Orateur: Luca Pagano (Universita' di Ferrara)
  
  Synergy Data
mar. 28 janvier
- 09:30
  
  Coffee
- 13
  
  Basics of TES microcalorimeter/bolometer and non-astronomy applications
  
  Orateur: Kazuhisa Mitsuda (QUP)
  
  TES Applications
- 11:00
  
  Coffee Break
- 14
  Machine Learning and Artificial Intelligence
  - a) AI for hardware in High Energy Physics
    
    Orateur: Louis Vaslin (QUP)
    
    AI for hardware in High Energy Physics
  - b) ML/AI Techniques in Cosmology
    
    Orateur: Jia Liu (Kavli IPMU)
    
    AI/ML for Cosmology
  - c) A Fast Map-Level Emulator for Extreme Augmentation of Small CMB Systematics Datasets
    
    Orateur: Paolo Campeti (INFN Sezione di Ferrara)
    
    Emulator for Systematics
- 12:15
  
  Lunch
- 15
  Galactic Foregrounds and Component Separation
  - a) Foreground modeling for CMB B-modes observations: Synchrotron emission
    
    Orateur: Nicoletta Krachmalnicoff (SISSA)
    
    Galactic Synchrotron
  - b) Modelling of the polarized thermal dust signal: review and prospects
    
    Orateur: Leo Vacher (SISSA)
    
    Galactic Dust
  - c) Component separation with no (few) assumptions: ILC methods
    
    Orateur: Alessandro Carones (SISSA)
    
    ILC methods
  - d) Foreground cleaning - Minimally informed component separation
    
    Orateur: Clement Leloup (Kavli IPMU)
    
    MICS
  - e) Systematic Effect Mitigation in Parametric Component Separation
    
    Orateur: Baptiste Jost (Kavli IPMU)
    
    Foreground Cleaning and Systematics
  - f) Foreground Cleaning - Delta Maps
    
    Orateur: Kiyoshi Ikuma (Okayama University)
    
    Delta Maps
  - g) Discussion: Current Priorities on Foreground Cleaning and Modeling
    
    Orateur: Carlo Baccigalupi (SISSA)
    
    Discussion
- 15:30
  
  Coffee Break
- 16
  Instrument Modeling and Systemtic Effects
  - a) Towards a parametric model to describe HWP non-idealities for primordial B-modes detection
    
    Orateur: Ema Tsang King Sang (APC)
    
    HWP Parametric
  - b) Simons Observatory SAT Half-Wave Plate
    
    Orateur: Daichi Sasaki (University of Tokyo)
    
    SO SAT HWP
  - c) LiteBIRD Half-Wave Plate
    
    Orateur: Ryota Takaku (QUP)
    
    LB HWP
  - d) Impact of HWP non-idealities on the observed CMB polarization
    
    Orateur: Marta Monelli (Kavli IPMU)
    
    HWP Modelling
  - e) Implementation of HWP Intensity to Polarization Leakage in LiteBIRD simulation framework
    
    Orateur: Miguel Gomes
    
    HWP Intensity to Polarization Leakage
  - f) Half-Wave Plate Pros & Cons
    
    Orateurs: Andrea Occhiuzzi (Universita' di Roma-Sapienza), Fabio Columbro (Universita' di Roma-Sapienza), Satoru Takakura (University of Tokyo)
    
    HWP Pros&Cons Analysis
    
    HWP Pros&Cons Instrument
mer. 29 janvier
- 09:30
  
  Coffee
- 17
  
  Neutrino Physics
  
  Orateur: Volodymyr Takhistov (QUP)
- 18
  Instrument Modeling and Systemtic Effects
  - a) Detector modeling and non-linearity knowledge requirements for LiteBIRD
    
    Orateur: Silvia Micheli (Universita' di Roma-Sapienza)
    
    Detector model
  - b) HWP and systematics effects with asymmetric beams
    
    Orateur: Yuya Nagano (Okayama University)
    
    HWP and systematics effects with asymmetric beams
- 11:00
  
  Coffee Break
- 19
  Instrument Modeling and Systemtic Effects
  - a) Requirements on gain calibration and beam far sidelobes knowledge for LiteBIRD
    
    Orateur: Florie Carralot (SISSA)
    
    Gain and Beam Requirements
  - b) Study on Feedback-controlled Beam Sidelobe Calibration Measurement for Future CMB Telescopes
    
    Orateur: Haruaki Hirose (Yokohama National University)
    
    Beam Calibration with Tunable Source
  - c) Beam and sidelobe modeling using optical simulations for the LiteBIRD Low-Frequency Telescope
    
    Orateur: Fred Matsuda (ISAS-JAXA)
    
    Beam Simulations
  - d) Laboratory beam measurements of millimeter-wave telescopes for LiteBIRD
    
    Orateur: Hayato Takakura (ISAS-JAXA)
    
    Beam Measurements
- 12:20
  
  Lunch
- 20
  Data Analysis Techniques and Mitigation of Instrumental Effects
  - a) Mapmaking & Systematic Effects Mitigation
    
    Orateur: Radek Stompor (APC)
    
    Mapmaking and Systematics
  - b) The Simons Observatory Analysis of Small Aperture Telescopes
    
    Orateur: Tomoki Terasaki (University of Tokyo)
    
    SO Analysis
  - c) A measurement of Atmospheric Circular Polarization with POLARBEAR
    
    Orateur: Takuro Fujino (Yokohama National University)
    
    PB Circular Polarization
  - d) Requirements on bandpass resolution and measurement precision for LiteBIRD
    
    Orateur: Serena Giardiello (Cardiff University)
    
    LiteBIRD Bandpass
  - e) Systematic effects mitigation by spin moment decomposition
    
    Orateur: Yusuke Takase (Okayama University)
    
    Systematics mitigation
  - f) BrahMap: A one-stop shop for CMB map-making
    
    Orateur: Avinash Anand (Universita' di Roma Tor Vergata)
    
    BrahMap
  - g) Discussion
    
    Orateur: Radek Stompor (APC)
- 15:30
  
  Coffee Break
- 21
  Likehood and global analysis
  - a) Common Analysis Methods in Ground & Space CMB Experiments
    
    Orateur: Yuji Chinone (QUP)
    
    Common (& Not Common) Analysis Methods in Ground & Space CMB Experiments
  - b) Robust constraints on tensor perturbations from cosmological data: A comparative analysis
    
    Orateur: Giacomo Galloni (Universita' di Ferrara)
    
    Robust constraints on tensor perturbations
  - c) Cosmoglobe: Global analysis of the microwave and infrared sky
    
    Orateur: Mathew Galloway (Oslo University)
    
    Cosmoglobe
- 22
  
  Closing Remarks
  
  Orateurs: Guillaume Patanchon (APC), Tommaso Ghigna (QUP-KEK)
  
  Closing Remarks