Postdoc in optical interfaces to electrically-controlled spin qubits

Work group:

PGI-9 - Halbleiter-Nanoelektronik

Area of research:

Scientific / postdoctoral posts

Job description:

High fidelity quantum state transfer between photons and scalable spin qubits is desirable for flexible quantum networks. Cluster quantum computing and quantum communication are examples of such networks.In an effort to realize spin-photon quantum state transfer, we are seeking to recruit a postdoctoral research scientist to develop optical interface devices for electrically-controlled singlet-triplet qubits. A singlet-triplet qubit can be defined in a double quantum dot that has been generated in a two-dimensional electron system in a GaAs/AlGaAs heterostructure using electrostatic gates. Research in scaling such qubits into multi-qubit processors is currently under way. Quantum state transfer from photon to spin is to be mediated by excitons localized on self-assembled quantum dots. Various algorithms for quantum state transfer from excitons to electrons in singlet-triplet qubits are being considered. This project is a collaboration between the Quantum Technologies Group in RWTH Aachen University and the Semiconductor Nanoelectronics in the Peter-Grünberg Institute in Forschungszentrum Jülich. It is part of a larger effort within the framework of the quantum computing program in Forschungszentrum Jülich and the Cluster of Excellence ML4Q.

Your Job:

Applications are invited from individuals who are interested in contributing to the development of optical interface devices and algorithms for quantum state transfer between photons and singlet-triplet qubits. The selected candidate is expected to focus their research on one or more of the following areas:

• Characterization of the performance of singlet-triplet qubits, with epitaxial quantum dots serving as photon qubit receivers in their proximity
• Characterization of spin-photon conversion in epitaxial quantum dots coupled to electrons in the singlet-triplet qubits
• Control of spin transfer between quantum dots
• Design and execution of protocols for device operation
• Design of devices and their fabrication

Your Profile:

• A Ph.D. (Master) in physics or engineering sciences, with focus on quantum technologies
• Experience in electrical and/or optical characterization of devices
• Experience in the design and execution of experiments

Our Offer:

We work on the very latest issues that impact our society and are offering you the chance to actively help in shaping the change! We support you in your work with:

• Outstanding research and computing infrastructure of one of Europe`s largest research centres
• Comprehensive training courses and individual opportunities for personal and professional further development
• Extensive company health management
• Ideal conditions for balancing work and private life, as well as a family-friendly corporate policy
• 30 days of annual leave
• Full-time position with the option of slightly reduced working hours

The position is initially for a fixed term of 2 years, with possible long-term prospects. Salary and social benefits in conformity with the provisions of the Collective Agreement for the Civil Service (TVöD). Depending on the applicant`s qualifications and the precise nature of the tasks, salary grade EG 13 TVöD-Bund.Forschungszentrum Jülich promotes equal opportunities and diversity in its employment relations.We also welcome applications from disabled persons.

This research center is part of the Helmholtz Association of German Research Centers. With more than 42,000 employees and an annual budget of over € 5 billion, the Helmholtz Association is Germany's largest scientific organisation.