Laboratory

Quantum Functional System Research Group
RIKEN Center for Emergent Matter Science
(Laboratory head: Seigo Tarucha)

Outline of Laboratory

Our research group has been studying quantum information processing, quantum state control, and the quantum physical properties (coherence, spin entanglement, etc.) in semiconductor quantum dots. In order to promote a project to develop fundamental principles and technologies of scalable quantum computing with silicon quantum dots. We are now seeking new postdoctoral researchers with experience in experimental expertise on semiconductor quantum devices, semiconductor quantum information, and so on.

Job title and Job description

Job title

Postdoctoral Researcher 2 positions
Postdoctoral Researcher is defined as those with a doctoral degree of 5 years or less.

Job description

Research on characterization of silicon qubit devices, multi-qubit system, and high-fidelity quantum operations, scalable quantum computing.
Postdoctoral researchers will be engaged in Moonshot R&D Project Goal 6 “Development of scalable silicon quantum computer technology”.

The job description may be changed during the contract period or upon contract renewal to the extent described above.

Qualification

The candidate should or be expected to possess a doctoral degree in experimental research fields of semiconductor physics, quantum transport, electrical engineering, and quantum information.

Work location

Quantum Functional System Research Group, RIKEN Center for Emergent Matter Science
(2-1 Hirosawa, Wako, Saitama 351-0198)

RIKEN has implemented a work-from-home system. Employees can work from home in accordance with the prescribed procedures.
RIKEN may order the employee to change work locations, if necessary.

Salary and benefits

• 1.A one-year fixed-term employment contract, renewable based on evaluation, to a maximum of up to March 31, 2026.
• 2.RIKEN may adjust the above maximum period of renewability based on a) the employee’s abilities, work load at the time of contract completion, performance and work attitude and b) the continuation of the employee’s center, laboratory or project and RIKEN’s management situation and budget at the time. In principle, employment contracts will not be renewed for individuals older than 70 years.

In principle, the first two months of employment is considered a trial period.
Salary will be an annual salary based on experience, ability, and performance, and will consist of a base salary and a variable salary. The variable salary will be determined each fiscal year based on experience, ability, and performance. The monthly base salary is 310,100 JPY as of April 1, 2025. The monthly base salary and variable salary are subject to change due to amendments to RIKEN regulations.

Discretionary work, commuting and housing allowances will be provided. Social insurance will be applied.

The approximate amount of annual salary at the time of employment:
The monthly salary including discretionary work allowance at the time of employment for a candidate with 3 years of experience, ability, and achievement after completion of the doctoral course will be approximately 500,000 JPY.

Mandatory membership in the RIKEN Mutual Benefit Society (RIKEN Kyosaikai).

This position falls under the specialized duties discretionary work system; one working day will be calculated as 7 hours and 30 minutes.

Days off include public holidays, New Year's holidays (Dec. 29 - Jan 3), and RIKEN Foundation Day.
Paid leave includes annual paid leave (up to 20 days depending on the month of employment), special paid leave (childcare, family nursing care, etc.), and work life balance holidays (up to 7 days depending on the month of employment).
There are also additional leave systems such as maternity leave, childcare leave, and family nursing care leave.
Smoking is entirely prohibited on site.
These and other provisions are in accordance with RIKEN regulations.

RIKEN is actively undertaking initiatives to promote gender equality and diversity, and moving forward with the establishment of a diverse and vibrant research environment. If multiple candidates are found to have the same aptitude following a fair assessment, active efforts will be made to recruit female candidates.

Also, eligible for an exemption from repayment for category 1 scholarship loans provided by the Japan Student Services Organization before fiscal year 2003, and eligible applying for the MEXT Grants-in-Aid for Scientific Research (Kakenhi).

The Wako Campus has an on-site daycare, RIKEN Kids Wako. For details, please send an email to the HR at kids [at] riken.jp.

Application and required documents

Required documents

• 1. Complete CV or CV (with photo and email address)

  *(RIKEN CV) Write the open call ID “W24265”, indicated in the parentheses next to the job title, in open call ID section in the upper right corner of your CV.

• 2.List of research achievements and publications
• 3.A letter of recommendation from the current supervisor (If unavailable, a letter from a substitute reference will be acceptable.）
  • *Letters should be addressed to “Dr. Takahisa Arima, Center Director of CEMS”
  • *Please specify the referee’s contact information (Name, affiliation, job title, phone number, and email address)
• 4.One set of copies of your major papers (maximum number: 5)
• 5.Summary of major achievements to date and research proposal in future (about 3 pages of A4 sized paper in total.)
• 6.Consent form for handling personal information based on GDPR
  • *If you are a resident of the European Economic Area (EEA) or UK, you are required to submit the document, "Consent form for handling personal information based on GDPR and Regulation of the European Parliament and of the council of on the protection of natural persons with regard to the processing of personal data and on the free movement of such data (UK General Data Protection Regulation)" with your signature.
    • You will find detailed information about General Data Protection Regulation (GDPR) on the following website:
      Data protection | European Commission
    • You will find detailed information about Regulation of the European Parliament and of the council of on the protection of natural persons with regard to the processing of personal data and on the free movement of such data (UK GDPR) on the following website:
      Data Protection and the EU | Information Commissioner’s Office

How to apply

The above documents except the recommendation letters combined into a single ZIP file should be uploaded to the following link:
For Postdoctoral Researcher position, Quantum Functional System Research Group, Center for Emergent Matter Science
The uploaded file name should contain your name.
After you uploaded the ZIP file, please let us (miho.okada [at] riken.jp) know the file name of the uploaded file. (Replace [at] with @)

Recommendation letters must be directly submitted from the referees to the following website with the subject line " Center for Emergent Matter Science, position name [applicant’s name] (Recommendation letter)". Please specify the applicant's name, referee's name and contact information in the recommendation letter.

For Postdoctoral Researcher position, Quantum Functional System Research Group, Center for Emergent Matter Science

After the referees uploaded the recommendation letter, please let us (miho.okada [at] riken.jp) know the file name of the uploaded file.
If a confirmation email is not received within 7 days after submission, please contact: miho.okada [at] riken.jp. (Replace [at] with @)

Note: Application documents will not be returned.

Deadline

Open until the position is filled

Handling Personal Data

Submitted documents are strictly protected under the RIKEN Privacy Policy and will be used only for the purpose of applicant screening. Personal information will not be disclosed, transferred or loaned to a third party under any circumstances without just cause.

Selection process

Application screening and interview for selected applicants

Start of Employment

As early as possible

Contact Information

Quantum Functional System Research Group, RIKEN Center for Emergent Matter Science
Email: miho.okada [at] riken.jp
For inquiries, please send an email.