A Quantum Information Matrix Toolkit

1.0

The last thing the world needs is another C++ Matrix library. However ...

This code is intended to facilitate coding C++ numerics related to Quantum Information. Naturally you'd probably be better off using Matlab or something but I like C++ and enjoy coding in it. This library provides:

• A templated Matrix class with all the usual arithmetic operators and some additional functions commonly used in Quantum Mechanics (such as the partial trace and tensor product etc).
• A convenient interface to certain Lapack linear algebra routines for inverses, eigen and singular value decompositions.
• Routines for the calculation of various entanglement measures.

Source code: http://www.physics.uq.edu.au/people/dawson/matrix/matrix-0.2.1.tar.gz

Makefiles are provided for Linux (tested with g++ 2.95 and 3.2.1) and Windows (Visual C++ 7) which compile shared objects / dlls. You'll also need the Lapack and Blas libraries which are provided by most major linux distributions. For Windows I recommend the CLaw32 stuff from http://www.netlib.org/clapack/

Alternatively for windows you can download precompiled dlls

Win32 libraries: http://www.physics.uq.edu.au/people/dawson/matrix/matrixw32-0.2.zip

This document is somewhat incomplete. The examples are probably the best place to get started

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