About Our Developer Community

Since 1993, Q-Chem, Inc. has provided commercial, academic and government scientists worldwide with high-quality quantum chemistry software, allowing them to solve computational problems quickly and accurately. Our open-teamware approach allows research groups from all across the globe to contribute their code to Q-Chem. Recent additions from our developers include ongoing development in our suite of Nuclear-Electronic Orbital methods, including real-time and multi-state NEO methods; Natural Auger Orbitals; and SF-EOM-CCSDT. With a well-structured and rigorously-tested code base, Q-Chem offers an appealing platform for developing fast and efficient code.

Are you interested in adding new functionality to Q-Chem? To apply to become a developer, or to request more details, contact support@q-chem.com. New developers will be asked to obtain a Q-Chem license, and they must sign a non-disclosure agreement pledging to respect the intellectual property of other developers.

Becoming A Q-Chem Developer

Access to the Q-Chem code and developer services is conditional on an individual:

  1. being a current member of a research group with an unlimited-core QMP entitlement, and
  2. having signed the latest version of the Q-Chem non-disclosure agreement (NDA).

At the sole discretion of the Q-Chem Board, the QMP subscription fee will be waived if a group is determined to have made a significant contribution to the code.

Meet Our Developer Community

Q-Chem's developer community is active, well-established, and constantly growing, with over 100 active members in 9 countries. A list of research groups who are currently developing code in Q-Chem, or have done so in the past, can be found below. A complete list of contributors can be found in the Q-Chem 5 paper citation.

Chart depicting contributions to Q-Chem over time

Statistics of Q-Chem developer activity since 2006. Top chart: Total number of code commits (height of bars) and number of developers contributing (color of bar) by month. Bottom chart: Growth of developer base, showing existing and new developers each month. A steady growth of the developer base can be seen. The inset depicts the total number of commits by the 50 most-prolific developers.



Â