PhD POSITION ON CIRCUIT QED WITH SPINS IN Si QUBIT DEVICES

Quantum Solid-State Physics (QSP) is a young and dynamic research unit within the Department of Physics and Astronomy at KU Leuven. KU Leuven consistently ranks among the world’s top 100 universities (Times Higher Education and QS World University Rankings) and has a long tradition of pioneering research and high-quality education.

Research at QSP focuses on quantum phenomena at the atomic and microscopic scale, investigating the origin and control of functional electric properties (magnetic, superconducting, semiconducting, dielectric, optical) in systems with reduced dimensionality — from single-atom defects to clusters of atoms, nanoparticles, 2D materials, thin films, and complex nanosystems and devices. While the focus is on fundamental understanding, QSP also engages in application-oriented research, often in collaboration with imec.

Project

We are offering a PhD position within an exciting joint research project between the Quantum Solid-State Physics division (QSP) at KU Leuven and imec. The PhD candidate will work in close collaboration with teams at both institutes. This project focuses on investigating the coherent interaction between light and matter within the framework of circuit quantum electrodynamics (circuit QED). We will study the coupling between microwave photons in superconducting resonators and single spins in state-of-the-art silicon-based qubit devices fabricated at imec's 300mm fab. Our objectives :

• To investigate coherent light-matter interaction at the single-photon, single-spin limit, we adopt a novel hybrid approach, using a standalone superconducting resonator and planar gate Si quantum dot (QD) systems.
• To develop low-loss, standalone superconducting resonators that allow to achieve high charge-photon coupling with a Si QD system.
• To demonstrate strong spin-photon coupling between the photons in an off-chip resonator and planar gate QDs using micromagnets for spin-charge hybridization.

The results will have direct relevance for quantum computing, particularly in developing hybrid qubit interfaces and quantum buses.

Profile

We are looking for highly motivated candidates with :

Offer

We offer a fully funded PhD position at KU Leuven (for a maximum period of 4 years, upon positive progress evaluation).

Interested?

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