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   Department of Physics

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  Dr Alessandro Rossi  Applications accepted all year round  Funded PhD Project (European/UK Students Only)

About the Project


For practical applications a quantum computer would need to host millions of quantum bits (qubits) with a high degree of inter-qubit connectivity. At present, rudimentary solid-state quantum processors operate in dilution refrigerators at sub-kelvin temperature and are controlled by general-purpose classical electronics at room temperature [1]. In order to enable large-scale quantum hardware, the main hurdle is in envisaging efficient interconnect approaches between classical and quantum electronics [2]. To this end, semiconductor-based quantum computers [3-4] could be advantageous because both the control electronics and the qubits could be integrated on the same chip, overcoming the wiring bottleneck.

This project will address some of the challenges to make this approach viable. Firstly, there will be a need to design a control electronics layer with extremely modest power consumption to avoid heating the quantum hardware to the detriment of its fragile quantum states. Secondly, the choice of the semiconductor material for the quantum layer will need to be carefully considered. The obvious choice may be silicon for its compatibility with integrated CMOS electronics, but other commercial semiconductors, such as silicon carbide and germanium will be also explored. This will entail characterisation of different quantum devices in typical operating conditions, such as microwave frequency drive and multiplexed radiofrequency readout, as well as in a range of temperatures and external magnetic fields.

The research activities will balance integrated circuit (IC) design and modelling, hands-on cleanroom fabrication, as well as experimental measurements at cryogenic temperatures. The student will be involved in making and characterising electronic devices in a range of semiconductor materials.

This is an exciting opportunity to develop technical skills of relevance to both the academic job market and the nascent quantum technology industry. On the one hand, the successful candidate will be involved in establishing a new academic quantum laboratory, which will feature Strathclyde’s very first dilution refrigerator! On the other hand, the project will provide industrial exposure through our corporate partners, i.e. the National Physical Laboratory (NPL) and Hitachi Europe. 


• Design and fabricate quantum devices in a cleanroom environment. 

• Design IC electronics to drive and read quantum hardware.

• Perform low-temperature experiments and device characterisation. 

• Analyse experimental data with appropriate software (e.g. Matlab, Python etc.).  

• Prepare manuscripts for submission to peer-reviewed journals. 

• Travel domestically across collaborating institutions to carry out part of the project’s activities. 


This project is part of a long-standing collaboration between the Quantum Technology Department at the National Physical Laboratory (Teddington) and the Physics Department at the University of Strathclyde (Glasgow). The student is expected to carry out most of the research activities at Strathclyde and will join the Semiconductor & Spectroscopy Group (https://ssd.phys.strath.ac.uk). The student will be also part of a cohort of highly selected students at the Graduate School for Quantum Technology (https://igsqt.ac.uk),a Scottish Centre for research training and skills development in quantum physics and its applications.

Short stays at our industrial partners will be needed and encouraged throughout the project’s lifespan. Funding for travel expenses is readily available.


For inquiries about the studentship and/or applications, please contact directly Dr Alessandro Rossi (alessandro.rossi 'at' strath.ac.uk).

Application documents: CV, recent transcript, and 1-page statement of interest.

Funding Notes

This studentship is for 3.5 years, fully funded (fees and stipend).
UKRI studentship eligibility criteria apply.


[1] F. Arute et al., Nature 574, 505 (2019)
[2] L. M. K. Vandersypen et al., npj Quantum Inf. 3, 34 (2017)
[3] T. F. Watson et al., Nature 555, 633 (2018)
[4] N. Hendrickx et al., Nature 577, 487 (2020)
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