Aalto University

Postdoctoral Researcher in Quantum Nanomechanics

Aalto University

Espoo, Finland

The Quantum Nanomechanics group http://physics.aalto.fi/en/groups/nems/ at the Department of Applied Physics, Aalto University http://www.aalto.fi/en/, Finland, is looking for an outstanding


to experimentally work on electromechanical quantum systems. The work is funded by the European Commission under the FET Proactive project Hybrid Optomechanical Technologies (HOT), by the ERC under the project CAVITYQPD, and by the Academy of Finland.

The position is filled and the work can start as soon as suitable candidate is found, but no later than by the end of 2019.

The research of our ambitious team is focused on fundamental research on the quantum-mechanical properties of micromechanical systems. We use microwave optomechanics based on superconducting microwave cavities and micromechanical resonators made with aluminum or silicon nitride membranes. In our recent work, we demonstrated quantum entanglement between two aluminum resonators [Nature 556, 478 (2018)]. With superconducting qubits, we explore the resonant conversion of quantum information and mechanical motion. In longer term, we are interested in the role of gravitation in quantum micromechanics, and in using levitated nanoparticles as quantum systems.
Our more applied research, as a part of the HOT consortium, will lay the foundation for a new generation of devices that use various types of optomechanical effects for efficient signal processing. We have realized quantum-limited microwave amplifiers and nonreciprocal components to be used in superconducting quantum technology. Besides electromechanics, we are building hybrid devices that aim on controlling ferromagnetic magnons using acoustic waves for signal processing.

Main tasks and requirements
The POSTDOCTORAL RESEARCHER will be responsible for the development and measurement of microwave optomechanical quantum chips, where the core element is a silicon nitride membrane that at very low temperatures becomes nearly isolated from energy losses to the environment. You will accommodate these devices into a quantum-limited detection system comprising of parametric amplifiers and real-time feedback, in order to create non-classical states in novel ways.

For this challenging research, we are looking for outstanding candidates who are motivated in experimental, low-temperature solid state physics. We require the candidates to have a proven track record in quantum nanophysics, clean room techniques, and strong interest in micromechanical systems. In addition, the candidates should have experience in running measurements in modern cryogenic systems.

To apply for the position, please submit your application as single pdf file containing (all documents in English). Name your application according to Lastname_Firstname_Application.pdf.

• Letter of motivation (max. one page)
• CV
• Summary of your skills
• Description of your research interests
• Transcripts of records
• Contact details of possible referees

Apply by the 31st of July through the link https://www.aalto.fi/en/open-positions/postdoctoral-researcher-in-quantum-nanomechanics

In addition, email a copy of you application to mika.sillanpaa@aalto.fi Please, include the names of three references and ask one of them to send a letter of reference directly by e-mail to Professor Mika Sillanpää (mika.sillanpaa@aalto.fi).

Salary, working time and place
Salary will be based on the salary system of Finnish universities, and it will increase with responsibilities and performance over time.
For the POSTDOCTORAL RESEARCHER, the expected starting salary is around 3500 €/month (before taxes), and it will increase with responsibilities and performance over time. The position will be filled for 1 year, with a possible extension for 1-2 years.
The positions are located on Aalto University’s Otaniemi campus in the premises of the cryogenic facilities at the Low Temperature Laboratory.

For further inquiries, please contact Prof. Mika Sillanpää (firstname.lastname@aalto.fi).

Please apply via recruiter’s website.