QDENSITY/QCWAVE: A Mathematica quantum computer simulation update

This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018) Abstract The Mathematica quantum computer simulation packages QDENSITY and QCWAVE are updated for Mathematica 9-10.3. An overview is given of the new QDensity, QCWave, BTSystem and Circuits packages, which includes: (1) improved treatment of tensor products of states and density matrices, (2) major extension to include qutrit (triplet), as well as qubit (binary) and hybrid qubit/qutrit systems in the associated BTSystem package, (3) updated sample quantum computation algorithms, (4) entanglement studi... Title of program: QDensity, QCWave, BTSystem, Circuits Catalogue Id: ADXH_v4_0 Nature of problem Simulation of quantum algorithms, Qubit and Qutrit hybrid systems, entanglement criteria. Versions of this program held in the CPC repository in Mendeley Data ADXH_v1_0; QDENSITY; 10.1016/j.cpc.2005.12.021 ADXH_v2_0; QDENSITY 2.0; 10.1016/j.cpc.2008.10.006 ADXH_v3_0; QCWAVE; 10.1016/j.cpc.2011.04.010 ADXH_v4_0; QDensity, QCWave, BTSystem, Circuits; 10.1016/j.cpc.2015.12.01