PhD Scholarships in Cavity Quantum Optomechanics

Thursday 07 May 20

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The Center for Macroscopic Quantum States (bigQ) at DTU Physics is looking for excellent PhD students to work in the field of experimental quantum optomechanics with the aim of studying quantum physics in a new regime, and to develop new technologies for quantum computing and quantum communication.

bigQ is a Center of Excellence in quantum science and technology whose goal is to explore quantum physics in new macroscopic regimes with the aim of deepening our understanding of quantum physics and to speed-up the development of the Quantum Internet and the Quantum Computer. Our main focus is basic research but we also strongly encourage and support innovation and industry partnerships.

The center comprises around 45 people including Faculty members, PhD students, postdocs, engineers and an administrator.

The project
The radiation-pressure coupling between light and mechanical oscillators inside an optical cavity permits full control of the quantum motion of mechanics, and it has become the foundation for numerous phenomena and applications in the burgeoning field of cavity quantum optomechanics. 

In these PhD projects, we will significantly advance the field of cavity quantum optomechanics. Specifically, we will deploy novel topologically-optimized mechanical oscillators with extremely high quality factors, developed within the center, and millimeter sized crystals with high-quality acoustic modes inside high-finesse optical cavities at low temperatures. Using these extraordinary properties of the mechanical oscillators, we expect to be able to bring them into states exhibiting distinctly quantum features. The aim of the projects is to obtain exquisite control of the oscillators through interaction with non-classical light (squeezed light and continuous variable entanglement) and high-efficiency detection, and to explore their physics and applications in the macroscopic regime.

Who are we looking for?
We are looking for exceptional physicists and engineers with extraordinary talents and outstanding drives. We are in particular looking for people with academic excellence and/or with demonstrated outstanding scientific achievements. We also expect that you have an exceptional ability to conceive new ideas and construct well-working experimental setups. What matters the most is your internal drive to make significant and groundbreaking progress.

What do we expect?
  • You are excited about large challenges, and you very much enjoy solving them.
  • You have an extraordinary drive towards achieving ground-breaking results.
  • You enjoy working in a team with an open-minded spirit. You are excited to teach and learn from other group members.
  • You love to discuss physics and to participate in thoughtful conversations.
  • You make things work and deliver!
Candidates should have a two-year master's degree (120 ECTS points) or a similar degree with an academic level equivalent to a two-year master's degree. 

Approval and Enrolment
The scholarship for the PhD degree is subject to academic approval, and the candidate will be enrolled in one of the general degree programmes at DTU. For information about our enrolment requirements and the general planning of the PhD study programme, please see the DTU PhD Guide.
We offer

DTU is a leading technical university globally recognized for the excellence of its research, education, innovation and scientific advice. We offer a rewarding and challenging job in an international environment. We strive for academic excellence in an environment characterized by collegial respect and academic freedom tempered by responsibility.

Salary and appointment terms
The appointment will be based on the collective agreement with the Danish Confederation of Professional Associations. The allowance will be agreed with the relevant union. The period of employment is 3 years. 

The work will take place at the DTU campus in Lyngby. 

You can read more about career paths at DTU here

Further information
Further information may be obtained from Proessor Ulrik Andersen (Center Leader),

You can read more about us on and

Please submit your online application no later than 7 June 2020 (23:59 local time)
Applications must be submitted as one PDF file containing all materials to be given consideration. To apply, please open the link "Apply online", fill out the online application form, and attach all your materials in English in one PDF file. The file must include: 

  • A letter motivating the application (cover letter)
  • Curriculum vitae
  • Grade transcripts and BSc/MSc diploma
  • Excel sheet with translation of grades to the Danish grading system (see guidelines and Excel spreadsheet here)
Incomplete applications will not be considered. Candidates may apply prior to obtaining their master's degree but cannot begin before having received it.

Applications and enclosures received after the deadline will not be considered.

All interested candidates irrespective of age, gender, race, disability, religion or ethnic background are encouraged to apply. 

Technology for people
DTU develops technology for people. With our international elite research and study programmes, we are helping to create a better world and to solve the global challenges formulated in the UN’s 17 Sustainable Development Goals. Hans Christian Ørsted founded DTU in 1829 with a clear vision to develop and create value using science and engineering to benefit society. That vision lives on today. DTU has 11,500 students and 6,000 employees. We work in an international atmosphere and have an inclusive, evolving, and informal working environment. Our main campus is in Kgs. Lyngby north of Copenhagen and we have campuses in Roskilde and Ballerup and in Sisimiut in Greenland.