Postdoc Researcher: Theory of Nano Photonic Gates based on Collision Model approach (NGAP Project)
N-GAP: Nanophotonic GAtes with exciton-Polaritons
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 realisation of a deterministic CNOT gate based on polariton systems, which is the essential building block of a quantum computer.
Read more about the NGAP project here.
DESCRIPTION
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). https://doi.org/10.1038/s41566-023-01186-0
EXPERIENCE & QUALIFICATIONS
- 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.
FURTHER INFORMATION & CONTACT
Salary range: SGD6,900 to SGD9,000 (depending on suitability and experience)
1 year position, renewable (depending on results)
Workplace address: CREATE Campus, CREATE Tower, 1 Create Way #08-01 Singapore 138602
Interested applicants please send your resume to:
Email: alexia.auffeves@cnrs.fr
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
