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Call for Project Assistant Professor
- Position: Project Assistant Professor, one person
・Job description:
The KAGRA Observatory at the Institute for Cosmic Ray Research (ICRR), University of Tokyo, is advancing technology development to significantly improve the sensitivity of the gravitational wave detector KAGRA in the high-frequency band, as part of the KAKENHI Grant-in-Aid for Scientific Research (S) project "Pioneering High-Frequency Gravitational Wave Astronomy for Elucidating the Physics of High-Density Extreme Matter" (Principal Investigator: Takaaki Kajita).
KAGRA is a laser interferometric gravitational wave detector built underground with a baseline length of 3 km. Its distinguishing features include the reduction of thermal noise by cooling its four main mirrors to cryogenic temperatures, as well as mitigation of the thermal lensing problem associated with high-power laser operation. The KAGRA Observatory is aiming for the first direct detection of gravitational waves with KAGRA by alternately performing sensitivity improvement campaigns and observation runs, while advancing gravitational wave astronomy in collaboration with gravitational wave observatories worldwide, including LIGO and Virgo.
For the sensitivity improvement in the high-frequency band targeted by this research project, it is essential to reduce the quantum noise of the optical phase (shot noise), which constitutes the dominant noise source in this regime. This call for applications seeks a specially appointed assistant professor to engage in the research and development of a high-performance squeezed vacuum field generation system, one of the quantum noise reduction technologies central to this effort.
Scope of change: The faculty member may be reassigned, concurrently assigned, or transferred to another position. (In principle, such an order will not be issued against his/her will. For details, please refer to Article 4 of the Regulations Concerning the Employment of University of Tokyo Faculty Members.)
・Application Prerequisites : Applicants should have or be about to obtain a Ph.D. in a related field by the time of employment. - Application Deadline: Application materials must arrive by 12:00 noon JST on July 27th, 2026.
- Detail: PDF
May. 28, 2026
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Call for Assistant Professor (female only)
- Position: Assistant Professor(female only) ※tenure track, one person.
・Job description:
The successful candidate will analyze joint observational data from the LIGO–Virgo–KAGRA Collaboration and derive scientific results within the KAGRA project. The candidate will also participate in the establishment of international collaborative networks to promote multi-messenger astronomy, as well as in the maintenance and operation of the KAGRA Observatory. In addition, the candidate will contribute to the management of the KAGRA project and international collaboration of ground-based gravitational-wave detectors, as well as to the management of computing resources, including the KAGRA main data server.
Scope of change: The faculty member may be reassigned, concurrently assigned, or transferred to another position. (In principle, such an order will not be issued against his/her will. For details, please refer to Article 4 of the Regulations Concerning the Employment of University of Tokyo Faculty Members.)
・Application Prerequisites : Applicants should have a Ph.D. in a related field by the time of employment.
Must be female.
※The University of Tokyo promotes gender equality, and in accordance with the provisions of Article 8 of the "Equal Employment Opportunity Law" (special provisions regarding measures for female workers), this open recruitment is limited to female applicants as a measure to proactively improve the current situation where the percentage of female faculty members is considerably low. - Application Deadline: Application materials must be received by 12:00 noon JST on July 6th, 2026.
- Detail: PDF
May. 1, 2026
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Call for Associate Professor
- Position: Associate Professor(tenure track), one person
・Job description:
The successful candidate is expected to conduct theoretical research in cosmology and particle physics, and, as an Associate Professor in the Theory Group at ICRR, to contribute to research and education while also fostering connections with observational and experimental studies.
Scope of change: The faculty member may be reassigned, concurrently assigned, or transferred to another position. (In principle, such an order will not be issued against his/her will. For details, please refer to Article 4 of the Regulations Concerning the Employment of University of Tokyo Faculty Members.)
・Application Prerequisites : Applicants must have a Ph.D. - Application Deadline: Application materials must arrive by 12:00 noon JST on July 3rd, 2026.
- Detail: PDF
May. 1, 2026
