QuTiP 2.2.0

We are pleased to announce QuTiP version 2.2.0, which now is available for download at the project's web page:

http://code.google.com/p/qutip/wiki/Download

Some of the many changes in this release include:

New Features

• Added Support for Windows
• New Bloch3d class for plotting 3D Bloch spheres using Mayavi.
• Bloch sphere vectors now look like arrows.
• Added partial transpose function.
• Added continous variable functions for calculating correlation and covariance matrices, the Wigner covariance matrix and the logarithmic negativity for multimode fields in Fock basis.
• The master-equation solver (mesolve) now accepts pre-constructed Liouvillian terms, which makes it possible to solve master equations that are not on the standard Lindblad form.
• Optional Fortran Monte Carlo solver (mcsolve_f90) by Arne Grimsmo.
• A module of tools for using QuTiP in IPython notebooks.
• Increased performance of the steady state solver.

Bug Fixes

• Function based time-dependent Hamiltonians now keep the correct phase.
• mcsolve no longer prints to the command line if ntraj=1.

We would especially like to thank everyone who has contributed with bug reports and code to this and previous releases of QuTiP!