Visiting the Higgs Centre

Roberto's visit will mainly focus on a collaborative project with the Higgs Centre lattice group combining parallel tempering, out-of-equilibrium dynamics, and machine learning. Roberto brings expertise in parallel tempering which complements the experience of the local group. This follows up on Roberto's previous visit, which studied the scaling of parallel tempering vs out-of-equilibrium methods for the CP(N-1) theory; we are writing up this work now. The project will investigate extension to SU(3) gauge theory (relevant for QCD studies) and inclusion of machine learning methods; we aim to produce a second joint publication based on this visit. Jointly with a postdoc in the Higgs Centre (Elia Cellini), he has also applied for computational resources on the JUPITER cluster to support this research, with the expected allocation starting in October. As a more exploratory activity, Roberto will also work with the lattice group on the possible extension of the Grid software framework to include parallel tempering capabilities, which would support future Edinburgh-based lattice projects.

To visit Dr. Luke K. Davis to work on statistical physics and geometry of active matter, and to engage with others in the Higgs Centre, School of Mathematics, and School of Physics and Astronomy.

This would be a visit as part of my Affiliate Membership of the Higgs Centre. It would be to carry out an initial collaboration visit with Ricarda Beckmann and Lilian Garrett-Smithson. We would share results, discuss progress and plan the future stages of our project to build new subgrid models. This project provides the initial meeting at which we can produce a specific multi-step plan for the collaboration. It will also provide an opportunity to finalise a review article initiated from a Higgs Centre workshop on Black Hole Spin that we co-organised earlier this year.

David will give a seminar on 2nd December to the PPT group on his recent work. The goal is to further spend the week interacting and discussing with members of the lattice group. Recent work has been made by David to study strong isospin breaking effects in lattice QCD using techniques based on automatic differentiation. This is very relevant to the ongoing research of Antonin Portelli, Vera Guelpers, Nils HT, and Ryan Hill and their research could directly benefit from discussing these novel technique with David.

David has also worked on trivialising flow techniques with Luigi Del Debbio and this visit can further advance these studies, as well as develop new discussions and ideas with the similar research paths of Gurtej Kanwar, Nils HT, Elia Cellini, and Raj Mukherjee.

During my visit I plan to hold discussions with, e.g. Luigi Del Debbio and Maxwell Hansen, on the topics of spectral reconstruction, and lattice QCD calculations of inclsuive semileptonic decay rates of charmed and bottomed mesons. I further plan to present my research in a seminar during my stay. Additionally, I would like to participate at workshops related to lattice QCD and machine learning applications that are being organized in Edinburgh. An avenue I wish to explore is applying machine learning to study the eigenvalue spectrum of the Dirac operator, for which I plan to hold discussions with Antonin Portelli.