[School of Natural Sciences PhD Scholarships] Open quantum systems and quantum light–matter interactions

About the project

About the Project Quantum systems are never perfectly isolated from their surroundings. Interactions with environmental degrees of freedom can profoundly alter quantum behaviour, producing dissipation and decoherence but also giving rise to new physical phenomena that cannot be understood by considering the system alone. Developing accurate theoretical descriptions of such open quantum systems is therefore essential both for understanding fundamental quantum physics and for exploiting quantum effects in emerging technologies. This PhD project will develop and apply theoretical methods for studying the equilibrium and non-equilibrium behaviour of open quantum systems, with particular emphasis on situations where conventional weak-coupling or memoryless descriptions break down. The objectives will be to develop improved theoretical understanding and modelling techniques for such regimes, and to use them to identify and characterise new physical behaviour. Depending on the interests of the student and developments within the wider research programme, the project may explore questions involving strong system-environment interactions, non-Markovian dynamics, quantum thermodynamics, many-body quantum systems, or strong light-matter coupling. A central aim will be to understand how interactions between quantum systems, electromagnetic fields and their wider environments modify observable physical behaviour. Possible applications include solid-state quantum technologies, nanoscale quantum thermal processes, quantum transport, and molecular or condensed-matter systems interacting strongly with light. Some directions may connect directly with ongoing experimental collaborations. The project will combine fundamental theoretical physics with the development of analytical and computational techniques for complex quantum systems. Methods will include analytical modelling, numerical simulation and computational approaches to quantum dynamics and many-body systems, as appropriate to the specific project. It would suit a student interested in quantum mechanics, quantum optics, condensed-matter theory or quantum information, and offers scope to work on both foundational questions and problems motivated by emerging quantum technologies. Potential outcomes include new theoretical methods, improved understanding of open-system and light-matter phenomena, predictions relevant to experimentally accessible systems, and peer-reviewed publications. The precise research direction will be developed jointly with the successful candidate, according to their interests and background. The student will receive individual supervision and research training in open quantum systems theory, quantum optics and relevant analytical and computational techniques. Training will be tailored to the specific project and the student's background, and will include opportunities to develop skills in scientific computing, research communication and engagement with collaborators where appropriate. This project is expected to start in September 2027. Before you apply: We strongly recommend that you contact the supervisors for this project before you apply. How to apply: To be considered for this project you must complete a formal application through our online application portal. If you already have an applicant account this link will directly open an application for PhD School of Natural Sciences Scholarships . If you don’t already have an applicant account, please follow the instructions here . When applying, please specify the full title and supervisor/s of the project, details of your previous study, and names and contact details of two referees. You must also upload a Supporting Statement describing your motivation to apply to the project, your CV and transcripts of awarded and in-progress university qualifications . Please note late or incomplete applications will not be considered. Equality, diversity and inclusion are fundamental to the success of The University of Manchester and central to all our activities. A diverse research community strengthens creativity, productivity and quality, while increasing the societal and economic impact of our work. We welcome applicants from all career paths, backgrounds and sections of the community, regardless of age, disability, ethnicity, gender, gender expression, sexual orientation or transgender status. We welcome applications from candidates returning to study after a career break or experience in other roles. Flexible study arrangements may be available, including part-time study at 50%, 60% or 80%, subject to the requirements of the project and funder. Eligibility : The standard academic entry requirement for this PhD is an upper second-class (2:1) honours degree (or international equivalent) in Physics or Theoretical Physics OR any upper-second class (2:1) honours degree and a Master’s degree at merit (or international equivalent) in Physics or Theoretical Physics. This project will remain open until filled. If your application is submitted by 1 st November 2026, you can expect a decision by 18 th December 2026. If your application is submitted by 15 th January 2027, you can expect a decision by 30 th March 2027. Self or externally funded students can also be considered for this project. FSESoNS

Research areas