Recent developments in quantum Monte Carlo


QMC-RD workshop logo

Location: Rome, Italy
Dates: Oct 21-22, 2021
Organisers: Fabio Affinito, Giovanni Bachelet, Lilia Boeri, David Ceperley, Irene Iacuitto, Gaetano Senatore

With advances in algorithms and growing computing power, quantum Monte Carlo (QMC) methods have become a powerful tool for the description of a variety of quantum fluids and a viable alternative for high-accuracy calculations of the electronic structure of many atoms, molecules and solids. They are, however, at a less mature stage than today’s ready-for-use quantum-chemistry or density-functional packages: while the production of results on a variety of quantum many-body systems has been going on for at least three decades, a significant effort is still devoted to research and development of methods and algorithms, including real-time dynamics, super-accurate optimization strategies for trial wavefunctions and molecular structures, inputs for the density functional theory of van der Waals forces, and eventually neural networks which at least for small molecular systems seem to improve the accuracy of variational quantum Monte Carlo to the point where it outperforms other ab-initio quantum chemistry methods.

QMC-RD workshop group picture, Oct. 21, 2021, Rome, Italy
QMC-RD workshop group picture in front of the Enrico Fermi Research Center of via Panisperna, Rome, Italy, where the workshop was held on October 21-22, 2021.

Continue reading Recent developments in quantum Monte Carlo

Psi-k Community Meeting 2021

Dear Psi-k,

Last year the pandemic prompted us to organise the first Psi-k community meeting online, which aimed to reach a wide audience and discuss our activities and modes of engagement – from submitting proposals, to becoming involved in the community, to supporting its activities – all to help our field thrive.

The positive feedback and experience last year has encouraged us to organise another meeting as an open webinar on Zoom on Friday 26 November 2021 at 2pm CET – this is Central European Time (you can translate it here:; hopefully convenient for many, and with apologies to those for whom it is not.

The webinar link, that you are also welcome to share, is:

The Psi-k Trustees will be present, and a short presentation will provide an update on developments over the last year and preview of future plans, notably the Psi-k Conference, which we expect to be held in person in Lausanne, 22-25 August 2022. This will be followed by Q&A and discussion that I hope will be as lively and constructive as last year.

I very much look forward to sharing our news and discussing our plans with you.

Peter Haynes (Psi-k Chair)