Are you passionate about quantum technologies and eager to further develop a Rydberg atom quantum computing platform as a 24/7 user-facility, in the context of the Flagship program EuRyQa? Join us! The overall objective of EuRyQa is to establish Rydberg quantum processors as a leading platform for scalable quantum computing. We develop and bring together the technology for realizing deep quantum circuits from four complementary European platforms, provide Europe-wide benchmarking on concrete computational problems and the next crucial steps towards fault-tolerant quantum computing.Job Description
Our platform for hybrid quantum computing and quantum simulation is formed around a quantum co-processor, with qubits based on ultracold atoms. We operate both a rubidium and strontium-based testbed. With optical tweezers these atoms are held in a lattice configuration with good controllability and readout. With excitation to Rydberg states, strong nearest-neighbor coupling can be realized, giving rise to multi-qubit entanglement. This platform is very suitable for specific tasks such as hybrid algorithms for quantum chemistry problems. The goal for the platform is a robust setup to contain single atoms reliably in optical tweezers, with excellent single- and multi-qubit control. The setup aims for high stability to make it suitable for 24/7 online access. More information: www.tue.nl/rydbergQC
Concretely, the candidate will focus on:
- Experiments for characterization, calibration and operation of Rydberg atom-based quantum computer.
- Utilize the Rb clock transition as qubit for long coherence times of >100ms.
- A complete and scalable quantum instruction set optimized for large qubit arrays.
- Employment of pulse-optimized multi-qubit gates that reduce the overall gate time (using intensity- and frequency-shaped laser pulses).
- Implementation of quantum error correction protocols optimized for Rydberg QCCollaboration between experimental and theoretical groups and industry partners to achieve the best performance.
Concretely, the selected candidate will focus on the qubit-hardware side of this project, specifically on the role of the Rydberg excitation and the nature of the interaction between the rubidium atoms, the scheme for multi-qubit entanglement, and the overall suitability for pulse-based and hybrid Variational Quantum Eigensolver problems. Different aspects of the platform will be characterized and optimized such as Rabi oscillations for single-qubit operations, Rydberg excitation for multi-qubit gates. The Rb setup is based on a MOT and contains specific optical elements such as two microscope objectives, a spatial light modulator that controls the tweezer array and AODs for atom rearrangement.
The selected candidate will work together with several PhD candidates, fellow postdocs/quantum engineers, MSc students and the PI's within the ultracold atom team at QT/e that works with both Sr and Rb setups. Moreover they will collaborate with the ultracold strontium lab at the UvA in Amsterdam, other partners within the Eindhoven Hendrik Casimir Institute
and the wider quantum research network in the Netherlands. The work will be carried out in the Center for Quantum Materials and Technology
(QT/e) within the CQT research group