We are a young group funded by the European Research Council, based in the Centre for Theoretical, Atomic, Molecular and Optical Physics, School of Mathematics and Physics, Queen’s University Belfast. We are a family and diversity friendly group. Join us!


Group leader: Dr Dermot Green

Dermot is a Reader in Theoretical Physics (permanent faculty member) at Queen’s University Belfast, where he holds a European Research Council grant.

He has broad interests in theoretical and computational physics that include:
* Diagrammatic many-body theory
* Theory of positron and positronium interactions with matter
* Theory of atomic and molecular collisions
* Quantum chaos
* Ultra-intense laser plasma interactions/strong-field QED.

For more details including a brief CV click here.

Research Fellows 

Dr Brian Cunningham,
(04/2019 —)

Brian graduated MSci and PhD from Queen’s University Belfast. He has expertise in computational condensed matter physics, notably incorporating vertex corrections in the Questaal code.

Dr Charlie Rawlins [alumnus]
(10/2019 —2022)

Charlie obtained a BSc in nanotechnology and his PhD in theoretical physics from Curtin University in Perth, Australia. His PhD in the theoretical physics group headed by Igor Bray, Alisher Kadyrov and Dmitri Fursa concerned positron and positronium scattering on atoms with a focus on anti-hydrogen formation. He has expertise in theoretical atomic physics and positronium.

Dr Andrew Swann [alumnus / Visting Researcher]

Andrew graduated MSci Mathematics (receiving the Royal Irish Academy “Hamilton Prize” for the best mathematics students in Ireland, in addition to numerous QUB examination prizes) and PhD in Theoretical Atomic Physics from Queen’s. He has expertise in theoretical and computational atomic and molecular physics, including positron and positronium interactions with atoms and molecules.

PhD students

Jaroslav Hofierka
PhD student (10/2019 —)

Jaroslav obtained a BSc in Physics and Masters degrees in Theoretical physics at the Charles University, Prague, Czech Republic. He is developing ab initio methods for positron-molecule interactions, as well as more general computational methodologies for diagrammatic many-body theory.

Jack Cassidy
PhD student (10/2020 —)

Jack was born and raised in Belfast, graduating 1st class Applied Mathematics and Physics at Queen’s (2020), receiving the William Blair Morton Prize and the Philip Burke Memorial Award. He began his PhD developing theoretical and computational methods for positron-molecule interactions in October 2020

Sarah Gregg
(PhD student 10/021-)

Sarah graduated 1st-class MSci Theoretical Physics, obtaining the
Raymond Flannery prize (for top student in Applied Mathematics or Theoretical Physics) and the William Blair Morton prize (for best undergraduate research project). She joins the group in Oct 2021.

  • Dr David Waide
    PhD student  – successfully defended his thesis “Many-body theory of positron interactions with atoms and atomic clusters” on 24th May 2023.

  • Dr Chris Emerson: graduated PhD in Pharmacy 2020; primary supervisor Dr Jonathon Coulter (QUB Pharmacy); second supervisor Dr Dermot Green

MSci Applied Mathematics and Theoretical Physics students

  • 2022/2023: Holly Lavery
  • 2022/2023: Martin-Lee Mullan
  • 2020/2021: Joshua Morrow
  • 2019/2020: Matthew Clark
  • 2017/2018: Ryan Duddy
  • 2016/2017: Aran O’Hare (Moved to PhD in University College London).
  • 2016/2017: Patrick Mullan (Awarded QUB prize for best MSci Physics project. Now PhD student at CERN ALPHA/Swansea University in antihydrogen. Photo of Patrick below from POSMOL2019).

Honorary group members

Radha Green (born 2018)
Oisin Green (born 2019)

Post from 2020: Radha and Oisin are currently developing a theory of everything. Radha has expertise in roaring like lions and dinosaurs. Oisin is conducting numerous thought experiments, and will share his insights when he can talk.

EDIT Summer 2021: Oisin is now speaking! Both are providing much hilarity.

EDIT Summer 2022: Radha and Oisin have a new brother! The hilarity grows!


Join us!