Research fellow in the theory of Nano Photonic Gates based on Collision Model approach

Job type: 

Application deadline: 

Monday, January 1, 2024

We are searching for a talented post-doctoral fellow to model the dynamics of quantum light pulses interacting with non-linearities close to the quantum regime induced by a Kerr optical cavity. The candidate will build a complete framework to model light-matter interaction in a fully Hamiltonian way. The theory will rely on the so-called collision method, which has been successfully developed to model the production of entangled qubit-light states in superconducting circuits [1] and semiconducting quantum optical platforms [2]. The derived analytic expressions will be used to fit experimental data and help experimentalists to improve the performances of the device.

[1] J. Stevens, et al.,Energetics of a single qubit gate, Phys. Rev. Lett. 129, 110601 (2022).
[2] N. Coste, D. Fioretto, N. Belabas, et al. High-rate entanglement between a semiconductor spin and indistinguishable photons. Nat. Photon. (2023).

The post-doc will be part of the |Quantum Energy Team (QET)>, in the group of A. Auffèves. Based in the International Research Lab MajuLab, located inside the Centre for Quantum Technologies, Singapore, the team investigates the foundations of quantum energetics as well as its applications in quantum technologies. The post-doc will play a key role in the achievements of the CREATE project N-GAP: Nanophotonic GAtes with exciton-Polaritons.

Summary of the N-GAP project: One of the main goals in the field of quantum technologies is to achieve quantum computing. Many technologies and platforms have been suggested to build a quantum computer, including ions, atoms, electrons, and superconducting materials. Among these options, all-integrated photonic platforms that allow creating complex circuitry with a small footprint are very promising.In N-GAP we will explore and exploit a hybrid state of light and matter, the excitonic polariton, to create a platform for quantum computing. Exciton polaritons, which emerge from the strong-coupling of an exciton and a photon, exhibit Kerr nonlinearities typically three orders of magnitude stronger than that found in standard photonic nonlinear crystals.
The main objective of N-GAP is to further enhance the nonlinearity of the polariton systems to achieve the first experimental realization of a deterministic CNOT gate based on polariton systems, which is the essential building block of a quantum computer.

• You must hold a PhD or equivalent University level diploma in quantum physics.
• Principal qualifications include theoretical quantum optics and quantum open systems. A good knowledge in photonic quantum computing, whether based on continuous or discrete variables, will be a strong plus.
• You should be used to working with experimental groups.
• A solid knowledge of written and spoken English is mandatory.
• We expect good interpersonal skills, the ability to thrive in a diverse, multidisciplinary environment, and the ability to present work at international conferences.

• Salary range: SGD6,900 to SGD9,000 (depending on suitability and experience)
• 1 year position, renewable (depending on results)
• Interested applicants please send your resume to
Subject template for application by email:
NGAP – Position – Name of the offer
Applications consisting of
• A letter of motivation
• CV
• Copies of degrees and certificates
• Two (maximum) recommendation letters