On-chip quantum cryptography using two-dimensional materials – University of Southampton

Supervisory Team: Dr Yasir Noori, Prof Frederic Gardes, Prof Jize Yan

Project description: This project is part of the EPSRC Centre for Doctoral Training in Quantum Technology Engineering at the University of Southampton. In addition to the research project outlined below you will receive substantial training in scientific, technical, and commercial skills.

Existing techniques to encrypt data in our Internet networks are vulnerable to being easily breakable by emerging quantum computers. IBM has recently released a 1000 qubit quantum computer and the challenge of finding alternative techniques to encrypt our data is becoming ever more urgent. Fortunately, quantum cryptography is a suitable solution to overcome this challenge. However, quantum cryptography requires unique lasers that can emit single photons and entangled photon pairs.

In this PhD project, you will use two-dimensional (2D) materials as single-photon light sources. Strain and defect engineering in 2D materials can result in in-gap discrete energy levels in the electronic structure of the material, leading to the creation of single and entangled photon sources. The wavelength can vary from visible to near IR depending on the chosen material. Once the photo-emitters are generated in the 2D materials, they can be transferred onto almost any arbitrary substrates including silicon photonic circuits (waveguides, couplers, photonic crystal cavities, etc.), making them an even more attractive candidate for on-chip photon sources. Key challenges will be understanding the nature of the single and entangled photon emission in this family of materials and tailoring their properties to their potential usage in quantum communications.

If you are interested, please contact the supervisor for more information: Yasir Noori, y.j.noori@soton.ac.uk

Entry Requirements

A very good undergraduate degree (at least a UK 2:1 honours degree, or its international equivalent).

Closing date: 31 August 2024. Applications will be considered in the order that they are received, the position will be considered filled when a suitable candidate has been identified.

Funding: We offer a range of funding opportunities for both UK and international students, including Bursaries and Scholarships.For more information please visit PhD Scholarships | Doctoral College | University of Southampton Funding will be awarded on a rolling basis, so apply early for the best opportunity to be considered.

How To Apply

Apply online: HERE Select programme type (Research), Faculty of Engineering and Physical Sciences, next page select “PhD Quantum Tech Eng”. In Section 2 of the application form you should insert the name of the supervisor.

Applications should include:

Curriculum Vitae

Two reference letters

Degree Transcripts/Certificates to date

For further information please contact: feps-pgr-apply@soton.ac.uk