Gull group at the University of Warsaw
As of summer 2025, the Gull group will have openings at the Physics Department of the University of Warsaw as a part of the ERC Advanced grant Quantum Algorithms. Openings are available for postdocs, PhD students, and master students on research topics in condensed matter theory and high-performance computing, including the development of field-theoretic methods for realistic correlated electron systems and their application to systems of interest. A wide range of topics is available. Previous work (see below) provides a general overview of the research areas. The Gull group will maintain an affiliation with the University of Michigan.
Available positions
Postdoc positions
Postdocs are required to have a PhD at the time of their employment. Areas include computational and/or analytical condensed matter theory, applied mathematics, quantum chemistry, and/or high-performance computing. Experience with modern analytic or numerical methods in quantum theory is desired. Experience with numerical methods in physics and a solid foundation in code development is especially welcome.
Interested parties should contact emanuel.gull@gmail.com for information.
To apply, send your application including a cover letter, curriculum vitae, list of publications, statement of re‐ search interests, and the three most relevant publications in a single PDF file. Please also have two reference letters sent to this email.
For full consideration please ensure that all materials are submitted by 5 Aug 2025. Evaluations will continue on a rolling basis until all positions are filled.
Note that postdoc positions will be advertised in a staggered fashion, one to two positions at a time. The official ads are now online at the following link:
EURAXESS
https://euraxess.ec.europa.eu/jobs/347874
PhD positions
Several positions for PhD candidates are available. Candidates are expected to apply to the Graduate School at the University of Warsaw. Please contact emanuel.gull@gmail.com for information and help with the application procedure.
Master positions
Several topics for master theses are available. Candidates are encouraged to contact emanuel.gull@gmail.com for information.
Related Work and References
Note that this subset of relevant publications is quickly outdated. For a more recent list of published work and preprints see the Google Scholar profile.
Quantum Impurity Solvers
- Tensor train continuous time solver for quantum impurity models
- Continuous-time Monte Carlo methods for quantum impurity models
Realistic Theoretically Rigorous Electronic Structure Methods
- Symmetry adaptation for self-consistent many-body calculations
- Equivariant neural network for Green’s functions of molecules and materials
- Fully self-consistent finite-temperature 𝐺𝑊 in Gaussian Bloch orbitals for solids
- Relativistic self-consistent 𝐺𝑊: Exact two-component formalism with one-electron approximation for solids
Mathematical Properties of Green’s Functions and Numerical Algorithms
- Minimal pole representation and analytic continuation of matrix-valued correlation functions
- Feynman diagrammatics based on discrete pole representations: A path to renormalized perturbation theories
- Denoising of imaginary time response functions with Hankel projections
- Minimal pole representation and controlled analytic continuation of Matsubara response functions
- Robust analytic continuation of Green’s functions via projection, pole estimation, and semidefinite relaxation
Application projects
- Large exciton binding energy in a bulk van der Waals magnet from quasi-1D electronic localization
- Ab initio self-energy embedding for the photoemission spectra of NiO and MnO