Postdoctoral Researcher in cQED Theory and Open Quantum Systems

Postdoctoral Researcher in cQED Theory and Open Quantum Systems

Aalto University

Espoo, Finland

€ 4229 - 4649 per month

Role and research opportunity

We are now looking for a Postdoctoral Researcher in theory to join the Quantum Computing and Devices (QCD) group at Aalto University. This position is aimed at an outstanding researcher in circuit quantum electrodynamics (cQED) who wants to help shape the next generation of superconducting quantum technology.

The role is a natural continuation of a successful line of quantum-circuit theorists in the group and is now open as we recruit a successor to a departing circuit-theory researcher. We are especially interested in candidates with strong experience in the theory of cQED circuits and a demonstrated ability to translate theory into experimentally useful design principles, models, or analysis. Expertise in open quantum systems is considered as a strong advantage.

Your network and team

QCD is one of Europe’s strongest academic environments in superconducting quantum circuits, combining theory, computation, device design, nanofabrication, cryogenic measurements, and entrepreneurship in one closely connected group. Our recent work spans high-coherence transmons, ultrasensitive thermal detectors for qubit readout, cryogenic microwave-photon measurements, tunable dissipation, and new concepts for autonomous quantum processors.

You will work in close interaction with experimental researchers, cleanroom experts, and collaborators at VTT and beyond. Similar theory positions in the group have led to careers as professor, long-term quantum-hardware roles in industry, and new spinouts! The QCD group and its wider alumni network have also contributed to Finland’s quantum startup ecosystem, including IQM, QMill, Quanscient, and Arctic Instruments.

Your responsibilities

• Develop theoretical models for superconducting quantum circuits, especially cQED devices relevant to control, readout, reset, filtering, tunable coupling, and low-temperature feedback.
• Analyse loss, noise, and decoherence mechanisms and connect theory with measured data.
• Contribute to new concepts at the interface of circuit theory, open quantum systems, and quantum control.
• Work closely with experimental researchers to guide device design, interpret results, and identify the most promising next steps.
• Publish high-impact research, help supervise students, and contribute to the scientific direction of the group.

What we are looking for

• PhD in theoretical and computational quantum physics, quantum engineering, or a closely related field.
• Strong track record in cQED, superconducting circuits, quantum optics, or a nearby area.
• Excellent command of quantum-circuit theory, effective models, analytical and/or numerical methods, and scientific programming.
• Experience in open quantum systems, dissipative dynamics, or noise theory is highly valued.
• Ability to collaborate productively with experimentalists and communicate ideas clearly in English.
• Evidence of scientific independence, ambition, and publication quality appropriate to career stage.