Open-source Code (SOMIM and SeCQC)
SOMIM: There is an open-source program code called SOMIM (Search for Optimal Measurements by an Iterative Method), which calculates the maximal mutual information (accessible information). For a given set of statistical operators, SOMIM finds the POVMs that maximize the accessed information, and thus determines the accessible information and one or all of the POVMs that retrieve it. The maximization procedure is a steepest-ascent method that follows the gradient in the POVM space, and also uses conjugate gradients for speed-up.
The complete set of files including the codes and manual can be found at the SOMIM website: http://www.quantumlah.org/publications/software/SOMIM/.
SeCQC: Another open-source program code called SeCQC (Search for the classical Capacity of Quantum Channels). Given a quantum channel, SeCQC finds the statistical operators and POVM outcomes that maximize the accessible information, and thus determines the classical capacity of the quantum channel.
The complete set of files including the codes and manual can be found at the SeCQC website: http://www.quantumlah.org/publications/software/SeCQC/.
Read more about this topic: Quantum Mutual Information
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