Cornell-Holland Ab-initio Materials Package (CHAMP)

The Cornell-Holland Ab-initio Materials Package (CHAMP) is a quantum Monte Carlo suite of programs for electronic structure calculations of atomic and molecular systems. The code is a sister code of the homonymous program originally developed by Cyrus Umrigar and Claudia Filippi of which it retains the accelerated Metropolis method and the efficient diffusion Monte Carlo algorithms.

The European branch of the code is currently developed by Claudia Filippi and Saverio Moroni, with significant contributions by Claudio Amovilli and other collaborators.

CHAMP has three basic capabilities:

Noteworthy features of CHAMP are: