Recent News

Artist's rendition of red emission from an Mn4+ impurity via recombination

Quantum Monte Carlo is applied to phosphors for the first time. 

Graphic showing first page of QMCPACK citation paper

A citation paper describing the current structure, capabilities and some future plans for the code has been published. J. Kim et al J. Phys.: Condens. Matter 30 195901 (2018), The paper is open access for the first year. The preprint is available at

Download QMCPACK v3.3.0


This release includes new methods, converter updates, and many optimizations, feature improvements, and bug fixes. It is a recommended update for all users.

Results from nightly and weekly tests are online at


This release provides a significant speed increase for many calculations. A C++11 compiler is now required. It is a recommended update.

Charge density difference in phosphorene

Phosphorene is a two dimensional material whose direct semiconducting band-gap, high carrier mobility and sensitivity to strain make it promising for applications.