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 the Nuclear-Electronic Orbital methods and vibronic and resonance Raman spectroscopy, both newly available in Q-Chem 5.4. 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.

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.



Q-Chem Developers
   Eric Berquist
   Evgeny Epifanovsky
   Xintian Feng
   Andrew Gilbert
   Shannon Houck
   Jing Kong
   Fenglai Liu
   Kuan-Yu Liu
   Peter McLaughlin
   Emil I. Proynov
   Fazle Rob
   Zhi-Qiang You
   Yu Zhang
Alán Aspuru-Guzik
    Thomas Markovich
Alexis T. Bell
   Yi-Pei Li
Nicholas A. Besley
   Hainam Do
   Magnus W. D. Hanson-Heine
Ksenia B. Bravaya
   James Gayvert
   Alexander Kunitsa
Bernard R. Brooks
David Casanova

   Abel Carreras
Jeng-Da Chai
   Po-Tung Fang
   Kerwin Hui
   You-Sheng Lin
   Shan-Ping Mao
   Yu-Chuan Su
Sonia Coriani
   Marta L. Vidal
   Josefine H. Andersen
Christopher J. Cramer
   Aleksandr V. Marenich
György Cserey
   Ádám Jász
   Gergely Kis
   István Ladjánszki
   Ádám Rák
   Gábor J. Tornai
A. Eugene DePrince III
   Laura Koulias
   Run R. Li
   Marcus Liebenthal
Robert A. DiStasio Jr.
Andreas Dreuw
   Adrian L. Dempwolff
   Felix Plasser
   Dirk R. Rehn
   Phillip H. P. Harbach
   Michael F. Herbst
   Manuel Hodecker
   Caroline M. Krauter
   Daniel Lefrancois
   Arne Luenser
   Jan-Michael Mewes
   Stefanie A. Mewes
   Alexander C. Paul
   Stefan Prager
   Maximilian Scheurer
   Matthias Schneider
   Jan Wenzel
Barry D. Dunietz
   Khadiza Begam
   Qingguo Feng
   Nickolai Sergueev
   Atsushi Yamada
Shirin Faraji
  Maximilian F. S. J. Menger
Thomas R. Furlani
Gergely Gidofalvi
Peter M. W. Gill

   Simon C. McKenzie
   Jia Deng
William A. Goddard III
Sharon Hammes-Schiffer

   Fabijan Pavošević
   Matthias Schneider
   Zhen Tao
Andreas Hauser
Martin Head-Gordon
   Abdulrahman Aldossary
   Andrew Behn
   Kristina D. Closser
   Romit Chakraborty
   Qinghui Ge
   Martí Gimferrer
   Matthew Goldey
   Joe Gomes
   Diptarka Hait
   Paul R. Horn
   Susi Lehtola
   Daniel S. Levine
   Joonho Lee
   Keith V. Lawler
   Jiashu Liang
   Matthias Loipersberger
   Yuezhi Mao
   Narbe Mardirossian
   Erum Mansoor
   Sam F. Manzer
   Katherine J. Oosterbaan
   Eloy Ramos-Cordoba
   Adam Rettig
   Elliot Rossomme
   David W. Small
   Christopher J. Stein
   Eric J. Sundstrom
   Jonathan Thirman
   Srimukh Prasad Veccham
   Alec F. White
   Jon Witte
   Shane R. Yost
Teresa Head-Gordon
Warren J. Hehre
   Phil Klunzinger
John M. Herbert
   Marc P. Coons
   Leif D. Jacobson
   Adrian W. Lange
   Jie Liu
   Adrian F. Morrison
   Ying Zhu
   Bushra Alam
   Kevin Carter-Fenk
   Zachary C. Holden
   Ka Un Lao
   Suranjan K. Paul
   Bhaskar Rana
   Ryan M. Richard
   Mary Rohrdanz
   Christopher F. Williams
   Xing Zhang
   Saswata Dasgupta
Chao-Ping Hsu
   Karl Kue
   Hung-Hsuan Lin
   Aaditya Manjanath
Thomas-C. Jagau
   Mario Hernández Vera
   Zsuzsanna Koczor-Benda
   Garrette Paran
Yousung Jung
   Hyunjun Ji
   Jaehoon Kim
Andreas Klamt
Michael Diedenhofen
Anna I. Krylov
   Pavel Pokhilko
   Ilya Kaliman
   Kaushik D. Nanda
   Yves A. Bernard
   Marc de Wergifosse
   Sahil Gulania
   Maxim Ivanov
   Sven Kähler
   Kirill Khistyaev
   Thomas Kus
   Arie Landau
   Prashant Manohar
   Wojciech Skomorowski
   Dmitry Zuev
Daniel S. Lambrecht
   Benjamin J. Albrecht
WanZhen Liang
   Xunkun Huang
Nicholas J. Mayhall
Tim Neudecker
   Tarek Scheele
C. William McCurdy
Jeffrey B. Neaton
Christian Ochsenfeld
   Jörg Kussmann
   Simon A. Maurer
John A. Parkhill
   Triet Friedhoff
   Joong Hoon Koh
   Kun Yao
Roberto Peverati
   Pierpaolo Morgante
   J. Wayne Mullinax
Vitaly A. Rassolov
Yihan Shao
   Zheng Pei
Shaama M. Sharada
Lyudmila V. Slipchenko
   Dimitri Kosenkov
Ryan P. Steele
Joseph E. Subotnik

   Ethan Alguire
   Vishikh Athavale
   Nicole Bellonzi
   Vale Cofer-Shabica
   Shervin Fatehi
Alex J. W. Thom
Alexandre Tkatchenko

   Dennis Barton
Donald G. Truhlar
Troy Van Voorhis

   Benjamin Kaduk
   Tim Kowalczyk
   Takashi Tsuchimochi
   Oleg Vydrov
   Sina Yeganeh
Tomasz A. Wesolowski
   Cristina E. González-Espinoza
   Alexander Zech
K. Birgitta Whaley
   Norm M. Tubman
H. Lee Woodcock III
Igor Ying Zhang

Paul M. Zimmerman
   Alan D. Chien
   Hanjie Jiang
   Alan E. Rask
Others
   Sebastian Ehlert