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Theory for Quantum correlations in extreme nanoplasmonic devices

School of Physics and Astronomy

About the Project

When light illuminates nano-sized metallic structures, the free electrons in the metal collectively oscillate, creating `plasmons’. By specifically designing the geometry and arrangement of the nano-metallic structures, one can direct and concentrate light at small enough volumes to enclose even single molecules or quantum emitters. Quantum emitters placed within these small volumes, absorb the plasmons to excite electrons at higher-energy states. Hence, the light (plasmon) and quantum emitters (matter) continuously exchange energy. Using plasmons, one can control how quickly the energy exchange occurs, and tailor the properties of the combined system at room temperature. Hence, using plasmons we can gain access to the fundamental elements of matter. When multiple quantum emitters are placed in a plasmonic nanocavity, quantum correlations emerge at ambient conditions. Such systems form the basis for many future applications in quantum technologies and quantum information processing [1,2,3]. This PhD project focuses on modelling the quantum correlations between multiple emitters in plasmonic nanocavities, performing full-wave numerical calculations to complement the analytical description and eventually to investigate more complex systems. The candidate will also work very closely with the experimental Nanophotonics group, at University of Cambridge.

The PhD candidate should have completed (or about to complete) his/her undergraduate degree in Physics (preferably with first class honours or equivalent). The PhD candidate is expected to have a keen interest on Electromagnetism and/or Quantum Optics. The project will take place in the Nanophotonics group of Dr Angela Demetriadou (, which is part of the Metamaterials Research Centre ( in the School of Physics and Astronomy, University of Birmingham. In line with the Department’s Athena SWAN programme, female applicants are particularly welcome to apply. For more details about the project, the funding available, advice on making your application or any other informal enquiries, please contact Dr Angela Demetriadou at: You can apply here: clearly stating the title of the project, the name of the supervisor (Dr. Angela Demetriadou) and Metamaterials Research Centre.

Funding Notes

Funding is awarded on competitive basis, is only available to UK/EU nationals and it covers tuition fees and living stipend for 3.5 years. Non-EU candidates with the correct qualifications will only be considered if they are self-funded or funded via other means.


[1] R. Chikkaraddy, et al. "Single-molecule strong coupling at room temperature in plasmonic nanocavities", Nature, 535, 127, (2016) [2] A. Demetriadou, J.M Hamm, et al. "Spatiotemporal dynamics and control of strong coupling in plasmonic nanocavities", ACS Photonics, 4, 2410, 2017 [3] N. Kongsuwan, A. Demetriadou, et al., "Plasmonic nanocavity modes: From near-field to far-field radiation", 2019, arXiv:1910.02273 (

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