PhD in Engineering of Quantum Light Sources and System Architecture for Photonic Quantum Computing

Technical University of Denmark; Kongens Lyngby; On-site; DKK 320,000 - 400,000; Full time

Job summary

Technical University of Denmark (DTU) invites applications for PhD scholarships in the Quantum Light Sources Group at DTU Electro. The project spans design, simulation and optical characterization of quantum-dot based single-photon sources and the engineering of photonic quantum information architectures as part of the Horizon Europe PHOTONIQC network.

Collaborations span seven countries with a focus on distributed quantum computing.

Qualifications

• Design and numerical simulation of quantum-dot-based single-photon sources.
• Experience with optical simulation tools.
• Interest in quantum information and photonic architectures.

Responsibilities

• Design and numerical simulation of quantum-dot single-photon sources.
• Characterize devices with advanced optical techniques.
• Increase source efficiency and photon indistinguishability toward unity.
• Build system architecture for cluster state quantum computing.
• Analyze source performance with simulations and propose new designs.
• Perform optical characterization of fabricated devices.
• Develop network architecture blueprint for photonic graph state computation.
• Supervise MSc/BSc/Fagprojekt students.
• Document research in scientific articles and conference contributions.

Skills

Optical simulation

Quantum optics

Photonics

Team collaboration

Tools

COMSOL Multiphysics

Lumerical

Job description

The Quantum Light Sources Group at DTU Electro is seeking candidates for PhD Scholarships in the field of design, simulation and optical characterization of highly efficient solid-state sources of single indistinguishable photons as well as in the engineering of system architecture for photonic quantum information technology. The position is offered within the framework of the EU Horizon Europe MSCA Doctoral Network “A Photonic Quantum Computer (PHOTONIQC),” Grant Agreement No. 101312868, which will employ a total of 15 PhD students in seven countries working in close collaboration on distributed photonic quantum computing. You will participate in an international team of PHOTONIQC PhD students, which will construct a new generation of components including sources, circuitry and detectors, propose new photonic quantum computing protocols and finally perform experimental implementations of multi-node distributed quantum computing. Locally, you will participate in a team with several senior researchers and Ph.D. students, which will design, fabricate and characterize quantum-dot-based single-photon sources.

Responsibilities and qualifications

• The focus of the PhD1 project position is the design and numerical simulation of quantum-dot-based single-photon sources using advanced optical simulation tools.
• The objective of the PhD2 project is the quantum optical characterization of the devices in our state-of-the-art optical laboratory using advanced optical excitation techniques.
• In both projects, the overall objective is to increase the efficiency and photon indistinguishability towards unity.
• Finally, the PhD3 project will build system architecture for cluster state quantum computing.
• Employ simulation techniques to analyze the single-photon source performance and propose new single-photon source designs overcoming the observed limitations (PhD1).
• Perform optical characterization of the fabricated devices in terms of purity, efficiency and photon indistinguishability (PhD2).
• Establish a network architecture blueprint for photonic graph state computation relating the performance of individual components to the success probability of the full computation (PhD3).
• Supervise MSc/BSc/Fagprojekt project students.
• Contribute to the development of new SPS designs.
• Document the research with scientific articles and conference contributions.