Quara

Quara, which stands for "Quantum Characterization", is an open-source library for characterizing elementary quantum operations. Currently protocols of standard tomography for quantum states, POVMs, gates, and measurement processes are implemented.

• Documentation: https://quara.readthedocs.io/en/stable/
• Tutorials: https://github.com/tknrsgym/quara/tree/master/tutorials
• Source code: https://github.com/tknrsgym/quara
• Bug reports: https://github.com/tknrsgym/quara/issues
• Contributing: https://github.com/tknrsgym/quara/blob/master/docs/contributing.rst

Install

Python version: 3.7+

pip install quara

Use with other optimization parsers and solvers

Quara can also be used with other optimization parsers and solvers. The currently supported combinations are as follows:

parser	solver	install
CVXPY	MOSEK	See the CVXPY website

Interface from different packages

Quara supports the wrappers for executing standard tomography from several packages. To use this wrapper, install the package to be used as follows:

Qiskit:

pip install qiskit

QuTiP:

pip install qutip

Forest:

Install Forest SDK, pyQuil, QVM, and Quil Compiler. See the pyQuil website for installation instructions.

See the tutorial for detailed instructions.

• Using Quara's standard tomography features from Qiskit
• Using Quara's standard tomography features from QuTiP
• Using Quara's standard tomography features from Forest [ 1qubit / 2qubit ]

Citation

If you use Quara in your research, please cite as per the included CITATION.cff file.

License

Apache License 2.0 LICENSE

Supports

Quara development is supported by JST, PRESTO Grant Number JPMJPR1915, Japan.