Workshop on diagrammatic Monte-Carlo

Diagrammatic Monte Carlo–the use of stochastic methods to evaluate many-body perturbation expansions–is in a period of rapid development, with new methods organizing the perturbation theory and for extending its radius of convergence making new classes of applications possible. The workshop will bring together the leading experts in the subject to compare results and approaches, assess the current status of the field, brainstorm new methods and select key science targets for the coming year.

Invited Participants

Tim Berkelbach	CCQ
Corentin Bertrand	CEA Grenoble
Chen Kun	Rutgers University
Guy Cohen	Tel Aviv University
Philipp Dumitrescu	CCQ
Michel Ferrero	Ecole Polytechnique
Antoine Georges	CCQ
Emanuel Gull	University of Michigan
Kristjan Haule	Rutgers University
Aaram Kim	Kings College London
Gabriel Kotliar	Rutgers University
Evgeny Kozik	Kings College London
Lin Lin	Univ. of California Berkeley
Andy Millis	CCQ
Alice Moutenet	Ecole Polytechnique
Takahiro Ohgoe	University of Tokyo
Olivier Parcollet	CCQ
Lode Pollet	University of Munich
Nikolay Prokofiev	Univ. Mass. Amherst
Angel Rubio	CCQ/MPSD
Fedor Simkovic	College de France
Gabriele Spada	Ecole Normale Paris
Boris Svistunov	Univ. Mass. Amherst
Igor Tupitsyn	Univ. Mass. Amherst
Kris Van Houcke	Ecole Normale Paris
Xavier Waintal	CEA Grenoble
Nils Wentzell	CCQ
Felix Werner	Ecole Normale Paris
Shiwei Zhang	CCQ
Zhenyu Zhang	Univ. of Science and Technology of China

Agenda

Monday July 22

8:00 – 9:00 AM	Breakfast
9:00 – 9:15 AM	Antoine Georges, Andy Millis and Angel Rubio	Welcome
9:15 – 10:00 AM	Boris Svistunov	Implicit Renormalization Approach to the Problem of Cooper Instability Slides Video
10:00 – 10:45 AM	Felix Werner	Progress report on the unitary Fermi gas Slides
10:45 – 11:15 AM	Break
11:15 – 12:00 PM	Michel Ferrero	Finding new routes up the strongly-correlated mountain <a href="/wp-content/uploads/2026/09/ferrero.pdf" Slides
12:00 – 2:00 PM	Lunch and Discussion
2:00 – 2:45 PM	Xavier Waintal	The out of equilibrium Anderson impurity model: A diagrammatic quantum Monte Carlo perspective Slides
2:45 – 3:30 PM	Emanuel Gull	Inchworm Monte Carlo solution of the dynamical mean field equations in real time Slides Video
3:30 – 4:00 PM	Break
4:00 – 4:45 PM	Kun Chen	Diagrammatic Monte Carlo RG approach to Field Theory Slides Video
4:45 – 5:30 PM	Brainstorm Session #1 Chair: Andy Millis	Algorithms for non-equilibrium: comparisons, discussion

Tuesday, July 23

8:00 – 9:00 AM	Breakfast
9:00 – 9:45 AM	Igor Tupitsyn	Orthogonality catastrophe in Coulomb systems Slides
9:45 – 10:30 AM	Kristjan Haule	Variational diagrammatic Monte Carlo to solve the electronic Slides
10:30 – 11:00 AM	Break
11:00 – 11:45 AM	Evgeny Kozik	Metal-insulator crossover in the 2D Hubbard model Slides
11:45 – 12:30 PM	Brainstorm Session #2 Chair: Angel Rubio	Discussion: electron gas; towards realistic systems
12:30 – 2:00 PM	Lunch and Discussion
2:00 – 2:45 PM	Nikolay Prokofiev	Polaron mobility in the “beyond quasiparticles” regime Slides
2:45 – 3:30 PM	Kris van Houcke	Determinant diagrammatic Monte Carlo algorithm and large-order behavior for the Fermi polaron
3:30 – 4:00 PM	Break
4:00 – 4:45 PM	Lode Pollet	Revisiting the properties of an impurity in a Fermi liquid Slides
4:45 – 5:30 PM	Brainstorm Session #3 Chair: Antoine Georges	Current limitations of algorithms, Physics targets
6:00 PM	Reception and Dinner

Wednesday, July 24

8:00 – 9:00 AM	Breakfast
9:00 – 9:45 AM	Lin Lin	Dynamical mean-field theory: theory and algorithms Slides
9:45 – 10:30 AM	Guy Cohen	Inchworm Monte Carlo for Equilibrium Problems Slides
10:30 – 11:00 AM	Break
11:00 – 11:45 AM	Riccardo Rossi	Renormalized expansions with determinants
11:45 – 12:30 PM	Brainstorm Session #4 Chair: TBD	DMFT solvers; Overview, perspectives and wrap-up discussion
12:30 – 2:00 PM	Lunch and Discussion

July 22, 2019

July 22, 2019

July 22, 2019

July 22, 2019

July 22, 2019

July 23, 2019

July 23, 2019

July 23, 2019

July 23, 2019

July 23, 2019

July 24, 2019

July 24, 2019