qptpp

Quantum Perturbation Theory with C++

Preliminaries

Disclaimer and Licensing

qptpp is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. qptpp is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with qptpp. If not, see http://www.gnu.org/licenses/. The full software license for qptpp version 1.0.0 can be found in file LICENSE.

Please cite this work

qptpp is a free and open source zero temperature quantum perturbation expansion code. The full software license for qptpp version 0.1 can be found in file LICENSE. You are welcomed to use it and publish data obtained with qptpp. If you do, please cite this work. Explain How To Cite This Work. FIXME. TBW.

Formulas used

Cite Wikipedia

Hash of the latest commit

Hash of the latest commit is also posted at https://web.ornl.gov/~gz1/hashes.html

Latest commit should always be signed. Keys at https://web.ornl.gov/~gz1/keys.html

Building and Running qptpp

Required Software

• GNU C++
• The LAPACK and BLAS libraries
• The GSL library
• PsimagLite (see below)
• FreeFermions (see below)

Optional Software

• make or gmake (only needed to use the Makefile)
• perl (may be needed to run some auxiliary script)

Quick Start

1. Use your distribution repository tool to install gcc with support for C++, the LAPACK and BLAS libraries, the gsl library, make, perl, and git if you don't have them.

2. Issue

   cd someDirectory/

   git clone https://github.com/g1257/PsimagLite.git

   git clone https://github.com/g1257/FreeFermions.git

   git clone https://github.com/g1257/qptpp.git

3. Compile PsimagLite

   cd PsimagLite/lib/

   perl configure.pl (you may now edit Config.make)

   make

   cd ../../

4. Now issue

   cd qptpp/src

   perl configure.pl

   Edit Config.make (optional)

   make

5. You can run it with TBW.