Visitor Archive 2026

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.

I have multiple ongoing collaborations with Prof. Arjun Berera and am a second supervisor for his PhD student, Zizang Qiu. I have another ongoing collaboration with Prof. Alkistis Pourtsidou. This visit will further these collaborations and well as start potential new ones with other faculty members there. I also have a couple of PhD students at Edinburgh (Idrus and Xiancong), both of whom have successfully defended the thesis and are awaiting their degrees to start their postdocs.

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.

Enzo Orlandini is a Higgs Associate who comes regularly. On this occasion the goal is to progress in joint work with Higgs Centre researchers on topological gels (with Andrea Bonato and Giuseppe Negro) and on chromatin supercoiling (with Giada Forte). Davide Marenduzzo is also a collaborator on these projects and will be the local host as usual with Enzo's visits.

To collaborate with researchers working on theory and observation of galaxy formation. As well as give one of more pedagogical lectures aimed at PhD students.

Research visit and colloquium speaker

To collaborate with Davide Marenduzzo on a theoretical study of lamellipodia. This project should result in several joint publications.

Exchange of new research ideas and results with members of the Higgs Centre.

Continue ongoing collaboration on the generalisation of the Parisi replica symmetry breaking scheme in disordered systems. Discussions with Statistical Physics and Complexity Group on broader area. Bernard will give a seminar on "Recent developments regarding the Fisher-KPP equation".

The purpose of this visit is to make significant progress on ongoing projects with local researchers in Edinburgh. Gurtej Kanwar is working with Fernando on the application of normalizing flows to the sampling and variance reduction of lattice QCD observables. During his visit, we will make progress on current collaboration work and initiate a new project on normalizing flows. Fernando also collaborates with Max Hansen on three-hadron scattering. During this visit, they aim to make progress on the implementation and derivation of the finite-volume formalism.

To collaborate with academics on their research, generative machine learning models for lattice field theory.

To progress in joint work with Higgs Centre researchers on DNA topology (with Leverhulme Fellow Giada Forte andLecturer Giuseppe Negro), as well as on liquid crystal defect modelling with geometric algebra (Davide Marenduzzo and Alexander Morozov).

To discuss the celestial sphere interpretation of the soft anomalous dimension and related quantities, following his recent work "Non-abelian soft radiation data for a celestial theory" and his earlier work "Non-abelian infrared divergences on the celestial sphere.