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University of Tokyo, Kavli Institute for the Physics and Mathematics of the Universe

133 30201
Position ID:
UTokyo-KavliIPMU-CMBC2025 [#30201]
Position Title: 
Postdoctoral Project Researcher in Cosmic Microwave Background Cosmology
Position Location:
Kashiwa, Chiba 277-8583, Japan
Subject Area: 
Cosmology
Appl Deadline:
2025/10/31 11:59PMhelp popup (listed until 2026/03/31)
Position Description:
   

Position Description

Applications are invited for a project researcher position at the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU (WPI)), the University of Tokyo.

The successful candidate will conduct research in cosmology with a focus on the cosmic microwave background (CMB) and its B-mode polarization. The project addresses key scientific goals of current and future CMB experiments through both theoretical studies and data analysis, including cosmic birefringence, CMB lensing, and primordial gravitational waves. While previous experience in these areas is highly valued, we also enthusiastically welcome applications from motivated individuals who are eager to newly explore these topics, regardless of their prior research background. The successful candidate is expected to work with Toshiya Namikawa, a faculty member at Kavli IPMU.

This position is supported by the JSPS KAKENHI project, “Cosmology with a New Analysis Method for B-mode Polarization of the Cosmic Microwave Background” (25K00996, PI: Toshiya Namikawa, https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-25K00996/).
  1. Position
    Postdoctoral project researcher (one position)

  2. Applicant eligibility
    Applicants should have a Ph.D. in physics or related areas by the position's starting date.

  3. Research items
    The successful candidate will be affiliated with Kavli IPMU and will conduct research in observational cosmology, with a focus on the CMB and its B-mode polarization. The work will involve both theoretical studies and data analysis related to key topics such as cosmic birefringence, CMB lensing, and primordial gravitational waves, in the context of ongoing and future CMB experiments.

  4. Date of the contract
    Starting at April 1, 2026 is desirable, but is negotiable

  5. Employment conditions
    The contract can continue until March 31, 2028. There is a possibility to extend the contract until March 31, 2029, depending on budgetary condition and starting date.

  6. Selection procedure
    Screening based on the submitted documents and interview.

  7. Documents to submit (only English documents are accepted)
    The application documents must be uploaded at “Application Form” on the Academic Jobs Online server (the applicant needs to register at AcademicJobsOnline.org https://academicjobsonline.org/ .)
    • CV 
    • Research Statement
    • Publication List
    • At least three reference letters

  8. Submission deadline
    October 31, 2025 (Fri), although later applications may still be reviewed.

  9. Inquiries
    Please feel free to inquire about this position by sending an email to Toshiya Namikawa (toshiya.namikawa@ipmu.jp).

  10. Note
    Commuting allowance to the working place will be provided in accordance with the relevant university regulations. The successful candidate is encouraged to apply for external funding in Japan to support their own research activities.
Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU), The University of Tokyo Institutes for Advanced Study, has the ambitious goal to discover the fundamental laws of nature and to understand the universe from the synergistic perspectives of mathematics, theoretical and experimental physics, astronomy, and statistics. It is an international research institute with English as its official language, established in October 2007.  More than a half of its full-time scientific members come from outside Japan.

We seek to build a diverse, highly interactive membership. Female and international applicants are strongly encouraged.

Personal information received through this application process will not be used for any other purposes.

Per Japanese government rules on protection of personal information and on foreign trades, we are required to include this link to this solicitation.

Application Materials Required:
Submit the following items online at this website to complete your application:
  • Curriculum Vitae
  • Research statement
  • Publication list
  • Three or more reference letters (to be submitted online by the reference writers on this site help popup)
And anything else requested in the position description.

Further Info:
https://www.ipmu.jp/
email address
 
Kavli Institute for the Physics and Mathematics of the Universe
The University of Tokyo
5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583, Japan