About the role
Your role
This is a position for one industrial PhD student in Göteborg Sweden. As a part of the position, you will be enrolled as a student in the research school of the Wallenberg Centre for Quantum Technology (WACQT) at Chalmers University of Technology. At Chalmers, your research will contribute to the development of a quantum computer based on superconducting circuits by optimising the microwave control signals.
At Saab you will become a part of a team that develops new concepts and studies future technologies. Here, you will apply your deep technical expertise in support of future radar systems.
This is a fulltime position with Saab. During the time of enrolment in the graduate school, you will spend 80% of your time towards the PhD studies at Chalmers, and the remaining 20% working with Saab internal projects.
Background
Quantum computers (QCs) are currently being researched and developed by many actors worldwide, with ever increasing performance in terms of qubit counts, coherence times, and gate fidelities across several different modalities. Among the QC modalities, superconducting circuits have perhaps enjoyed the largest development efforts and are also the quantum computing research platform at Chalmers University of Technology, under development within the WACQT programme.
Qubit control in superconducting circuits which involves, e.g., state preparation, gate operations, and readout, is implemented with microwave pulses. When scaling up for fault-tolerant quantum computing, the complex quantum mechanical systems must be able to correct for a multitude of error sources. Due to known and unknown characteristics of the quantum system, such as unwanted coupling, cross-talk, non-linearities, control signal overlap etc., errors will disturb the sensitive qubit states. It has been shown that leakage errors may be reduced significantly by careful design of the microwave signals to improve single-qubit and two-qubit gate fidelities, state preparation, and readout. Optimisation of the control signals is a crucial tool in moving towards fault-tolerant quantum computing that will require large qubit counts and high-fidelity operations.
Research project…
