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QuTiP 4.4.0

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@Ericgig Ericgig released this 04 Jul 19:58
· 1 commit to qutip-4.4.X since this release

The release of QuTiP 4.4.0

Improvements

  • MAJOR FEATURE: Added methods and techniques to the stochastic solvers (by Eric Giguère) which allows to use a much broader set of solvers and much more efficiently.

  • MAJOR FEATURE: Optimization of the montecarlo solver (by Eric Giguère). Computation are faster in many cases. Collapse information available to time dependant information.

  • Added the QObjEvo class and methods (by Eric Giguère), which is used behind the scenes by the dynamical solvers, making the code more efficient and tidier. More built-in function available to string coefficients. The coefficients can be made from interpolated array with variable timesteps and can obtain state information more easily. Time-dependant collapse operator can have multiple terms.

  • New wigner_transform and plot_wigner_sphere function. (by Nithin Ramu).

  • ptrace is faster and work on bigger systems, from 15 Qbits to 30 Qbits.

  • QIP module: added the possibility for user-defined gates, added the possibility to remove or add gates in any point of an already built circuit, added the molmer_sorensen gate, and fixed some bugs (by Boxi Li).

  • Added the quantum Hellinger distance to qutip.metrics (by Wojciech Rzadkowski).

  • Implemented possibility of choosing a random seed (by Marek marekyggdrasil).

  • Added a code of conduct to Github.

Bug Fixes

  • Fixed bug that made QuTiP incompatible with SciPy 1.3.

  • quite.cite() is improved.

  • Added matplotlib as optional dependency and updated numpy and scipy requirements.

  • Fixed matrix generating coherent spin states in qutip.piqs to include complex coefficients.