quantum optics

Epitaxial semiconductor quantum dots are among the best sources of quantum states of light. They deliver single photons and entangled photon pairs with high brightness and indistinguishability. We have recently established new methods for their coherent optical control and excitation with the goals of improving robustness and coherence. In the Austrian Science Fund (FWF) project BRAIDS we are working towards the generation of time-bin entanglement via dark exciton states.

The Niels Bohr Institute invites applicants for two PhD fellowships in Theoretical Quantum Optics and Quantum Information. The projects will be part of the theoretical quantum optics group and the Center for Hybrid quantum Networks (Hy-Q).

The starting date is (expected to be) 1 September 2026 or as soon as possible thereafter. An earlier starting date may also be a possibility.

Background: This postdoctoral researcher will join the newly established group of Inamori FP Associate Professor Joshua Foo at the Institute for Advanced Study, Kyushu University. The research will focus on developing experimental proposals to probe the interplay of quantum mechanics and spacetime physics in low-energy systems such as atomic clocks, mechanical resonators, and photonic interferometers. Relevant directions for exploration include quantum extensions of relativistic principles, foundations of relativistic quantum mechanics, and tabletop tests of weak field quantum gravity.

The coherence time is a key metric for evaluating the performance of a quantum bit. We have recently proposed a new type of qubit that stores information in the mechanical displacement of a carbon nanotube and leverages its coupling to an electronic two-level system to induce sufficiently strong anharmonicity, enabling its manipulation and readout.

Our recently established collaborative research initiative “Machine Learning for Complex Quantum States” (MLCQS) – a consortium spanning nine different institutions across Germany and Switzerland – is seeking to fill several PhD positions.

The Quantum Information Science Group (https://squis.snu.ac.kr/) at Seoul National University (SNU) invites applications for Research Fellow (postdoctoral or senior) and/or Research Professor (assistant or associate level) position(s) in theoretical quantum computing, as part of the NextQuantum Innovation Research Center (https://nextquantum.snu.ac.kr/), funded by the Korean Ministry of Science and ICT. The appointment is expected to start on 1 June 2026; the start date and salary are negotiable.

Our group has funding for post-doc funding for 2026-2027 from the projects “Nanophotonic-based Quantum Simulation and sensing” from Fundación BBVA and national projects from Alejandro González Tudela.

We are seeking a research team leader (the position is offered as part of the tenure track) to join the CTP PAS research team. The candidate should demonstrate a passion for science and a willingness to make a lasting commitment to the Institute and contribute to its development by conducting high-quality research, establishing their own research group, securing research grants, and being active in the organisation.

The salaries of the members of the emerging research team will be financed through the EUCENTRAL project (min. 2 PhD students and post-docs). Furthermore, funds for conference travel will be provided for the team (for the duration of the project).

We have several post-doc positions available in the multimode quantum optics group of the Kastler Brossel Laboratory in Paris.

On the experimental side, we have many projects to choose from, ranging from light-atom interactions to verification of non-Gaussian properties.

On the theory side, we are looking for someone who is interested in thinking about architectures for photonic quantum computing.

Check out the link for more detailed offers!