PhD student in Experimental quantum technology: quantum processors with Rydberg ions in cryogenic environment

Updated: 10 days ago
Deadline: 05 Mar 2021

at the Department of Physics . Closing date: 3 May 2021.

The Department of Physics is located in the AlbaNova University Center and has approximately 240 employees, 250 students at undergraduate level and 95 graduate students. There are four research subjects within the postgraduate program: Physics, Theoretical Physics, Chemical Physics and Medical Radiation Physics. These subjects span over several research groups with different research activities. For information about the Department of Physics, see: www.fysik.su.se/english .

Project description
Subject: Physics.

The Trapped Ion Quantum Technology group at Stockholm University invites applications for a PhD position on our trapped Rydberg ion project. The successful PhD applicant will design and build a cryogenic ion trapping experiment for realising a fast quantum processor with trapped Rydberg ions. The cryogenic environment will reduce decoherence due to black-body radiation.

Trapped Rydberg ions are a new system for quantum computation. By laser pulses the ions’ outermost electron is excited to a high-lying Rydberg orbital [1]. Such Rydberg ions are million times bigger than ions in the ground state, and due to their size obtain very peculiar properties. In particular, trapped ions can be entangled via a strong Rydberg interaction in less than an microsecond [2]. This method supports fast entangling gates in large ions crystals, thus enabling a fast trapped ion quantum computer.

The experimental PhD project will take place in the Trapped Ion Quantum Technology group at Stockholm University and is part of the Swedish Graduate School in Quantum Technologies funded by the Wallenberg Centre for Quantum Technology - WACQT. For more information see http://qtech.fysik.su.se/ .

References

[1] G. Higgins, et al., Coherent control of a single trapped Rydberg ion, Physical Review Letters 119 (22), 220501 (2017).

[2] C Zhang, et al., Sub-microsecond entangling gate between trapped ions via Rydberg interaction, arXiv:1908.11284.

Education at the research level
A PhD education at Stockholm University is four years (48 months). The 4-year PhD program includes at least 3 years of research and at most one year of course work. The position may be extended by up to one year if up to 20 % teaching assistance or administration is included in the contract. The PhD student is employed (“doktorandanställning”) during the studies, with a monthly salary starting at SEK 27 000.

Qualification requirements
An applicant who has completed a second-cycle (master's) degree, or completed courses equivalent to at least 240 higher education credits (4 years of studies), of which 60 credits must be in the second cycle, or have otherwise acquired equivalent knowledge in Sweden or elsewhere, meets the general entry requirements.

In order to be accepted as a PhD student in Physics or Theoretical Physics a BSc in Physics (or equivalent) is required. The studies must include 60 credits of second-cycle courses in physics out of which at least 15 credits correspond to a second-cycle degree project. The degree project does not have to have been examined at the application deadline, but work corresponding to half a semester of full-time studies should have been devoted to it. For the subject Chemical Physics courses in chemistry may replace the required physics courses.

The qualification requirements must be met by the deadline for applications.

Selection
The selection among the eligible candidates will be based on their capacity to benefit from the training. The successful applicant will be selected based on documented theoretical and experimental knowledge relevant for the area of study, knowledge of scientific theory and method, analytical skills, personal motivation and team working skills. Well-developed English language skills are required. The applicants are encouraged to provide supporting documents that substantiate qualifications, e.g., knowledge, skills, abilities and experience.

References and interviews will be used to assess qualifications of the applicants. We seek a self-motivated candidate with good analytical abilities and skilled in English.

Admission Regulations for Doctoral Studies at Stockholm University are available at: www.su.se/rules and regulations .

Terms of employment
Only a person who will be or has already been admitted to a third-cycle programme may be appointed to a doctoral studentship.

The term of the initial contract may not exceed one year. The employment may be extended for a maximum of two years at a time. However, the total period of employment may not exceed the equivalent of four years of full-time study.

Doctoral students should primarily devote themselves to their own education, but may engage in teaching, research, and administration corresponding to a maximum of 20 % of a full-time position.

Please note that admission decisions cannot be appealed.

Stockholm University strives to be a workplace free from discrimination and with equal opportunities for all.

Contact
For more information, please contact Associate Prof. Markus Hennrich, markus.hennrich@fysik.su.se , or Prof. Per-Erik Tegnér, tegner@fysik.su.se .

Union representatives
Ingrid Lander (Saco-S), tfn 0708-16 26 64, saco@saco.su.se , Alejandra Pizarro Carrasco (Fackförbundet ST/Lärarförbundet), tfn 08-16 34 89, alejandra@st.su.se , seko@seko.su.se (SEKO) and doktorandrepresentant, doktorandombud@sus.su.se .

Application
Apply for the PhD student position at Stockholm University's recruitment system. It is the responsibility of the applicant to ensure that the application is complete in accordance with the instructions in the advertisement, and that it is submitted before the deadline.

Please include the following information with your application

  • Your contact details and personal data
  • Your highest degree
  • Your language skills
  • Contact details for 2–3 references
    Important:
    Your academic referees should send us recommendation letters no later than May 3, 2021, via e-mail to: FV-1193-21.refletters@fysik.su.se  and state in the subject line: SU FV-1193-21 + name of the applicant.

and, in addition, please include the following documents

  • Cover letter describing among other things:
    – why you are interested in the field/project described in the advertisement
    – what makes you suitable for the project in question
  • CV – degrees and other completed courses, work experience and a list of degree projects/theses
  • Degree certificates and grades confirming that you meet the general and specific entry requirements (no more than 6 files)
  • Degree projects/theses (no more than 6 files).

The instructions for applicants are available at: How to apply for a position .

You are welcome to apply!

Stockholm University contributes to the development of sustainable democratic society through knowledge, enlightenment and the pursuit of truth.

Closing date: 03/05/2021

URL to this pagehttps://www.su.se/english/about-the-university/work-at-su/available-jobs/phd-student-positions-1.507588?rmpage=job&rmjob=14653&rmlang=UK


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