qiboteam/qibo: Qibo 0.1.8

• adding acat2021 proceedings by @scarrazza in https://github.com/qiboteam/qibo/pull/551
• Adding channels to circuit.draw() by @andrea-pasquale in https://github.com/qiboteam/qibo/pull/550
• Add identity symbol by @stavros11 in https://github.com/qiboteam/qibo/pull/557
• Add support for sparse matrices in Hamiltonians by @stavros11 in https://github.com/qiboteam/qibo/pull/542
• Full state callback by @stavros11 in https://github.com/qiboteam/qibo/pull/559
• Fix sampling when using circuit.add() by @andrea-pasquale in https://github.com/qiboteam/qibo/pull/564
• Raise error if QAOA Hamiltonians have different nqubits by @stavros11 in https://github.com/qiboteam/qibo/pull/565
• Relax probability sum check in UnitaryChannel by @stavros11 in https://github.com/qiboteam/qibo/pull/566
• Add noise model by @andrea-pasquale in https://github.com/qiboteam/qibo/pull/572
• Multi-qubit fusion by @stavros11 in https://github.com/qiboteam/qibo/pull/577
• Add light cone method to circuit by @stavros11 in https://github.com/qiboteam/qibo/pull/578
• Fix pickle for the backend object by @stavros11 in https://github.com/qiboteam/qibo/pull/579
• Fix backend pickle by @stavros11 in https://github.com/qiboteam/qibo/pull/581
• testing distributed circuits with cupy by @scarrazza in https://github.com/qiboteam/qibo/pull/588
• qibotf removal by @scarrazza in https://github.com/qiboteam/qibo/pull/587
• Fix noise model by @andrea-pasquale in https://github.com/qiboteam/qibo/pull/583
• Circuit to unitary matrix by @stavros11 in https://github.com/qiboteam/qibo/pull/585
• Adding TSP class section in doc by @andrea-pasquale in https://github.com/qiboteam/qibo/pull/602
• Hamiltonians refactor by @andrea-pasquale in https://github.com/qiboteam/qibo/pull/595
• Tsp branch by @shangtai in https://github.com/qiboteam/qibo/pull/599
• Circuit result by @stavros11 in https://github.com/qiboteam/qibo/pull/589
• Refactor callbacks by @stavros11 in https://github.com/qiboteam/qibo/pull/593
• Complete channel refactoring by @stavros11 in https://github.com/qiboteam/qibo/pull/594
• Time evolution refactoring by @stavros11 in https://github.com/qiboteam/qibo/pull/603
• Add Tensorflow backend by @stavros11 in https://github.com/qiboteam/qibo/pull/596
• Variational models refactor by @andrea-pasquale in https://github.com/qiboteam/qibo/pull/606
• Distributed circuit refactoring by @stavros11 in https://github.com/qiboteam/qibo/pull/604
• Update docs by @stavros11 in https://github.com/qiboteam/qibo/pull/610
• Fix examples by @stavros11 in https://github.com/qiboteam/qibo/pull/611
• Fixing parallel by @scarrazza in https://github.com/qiboteam/qibo/pull/612
• Add environment flag for default qibo backend by @stavros11 in https://github.com/qiboteam/qibo/pull/613
• Fix coverage by @stavros11 in https://github.com/qiboteam/qibo/pull/614
• Fix tf.math.mod on GPU by @stavros11 in https://github.com/qiboteam/qibo/pull/616
• Backend agnostic circuits by @stavros11 in https://github.com/qiboteam/qibo/pull/584
• Add qibolab backend by @stavros11 in https://github.com/qiboteam/qibo/pull/617
• Delegate CircuitResult.probabilities() to the backend by @stavros11 in https://github.com/qiboteam/qibo/pull/618
• Remove VariationalLayer by @stavros11 in https://github.com/qiboteam/qibo/pull/619
• Add dill tests by @stavros11 in https://github.com/qiboteam/qibo/pull/621
• Fix TSP test by @stavros11 in https://github.com/qiboteam/qibo/pull/620
• Fix docs compilation by @stavros11 in https://github.com/qiboteam/qibo/pull/623
• Add refactored TSP model by @stavros11 in https://github.com/qiboteam/qibo/pull/615
• Fix test failing on GPU by @stavros11 in https://github.com/qiboteam/qibo/pull/624
• Adding CuQuantum version in docs by @andrea-pasquale in https://github.com/qiboteam/qibo/pull/622
• removing benchmark section by @scarrazza in https://github.com/qiboteam/qibo/pull/627
• Add atol in TSP test by @stavros11 in https://github.com/qiboteam/qibo/pull/630
• Adding pre-commit by @scarrazza in https://github.com/qiboteam/qibo/pull/628
• adding pyupgrade by @scarrazza in https://github.com/qiboteam/qibo/pull/633
• add isort by @scarrazza in https://github.com/qiboteam/qibo/pull/632
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/qiboteam/qibo/pull/634
• RXX, RYY and RZZ gates by @damarkian in https://github.com/qiboteam/qibo/pull/631

• @shangtai made their first contribution in https://github.com/qiboteam/qibo/pull/599
• @pre-commit-ci made their first contribution in https://github.com/qiboteam/qibo/pull/634
• @damarkian made their first contribution in https://github.com/qiboteam/qibo/pull/631

Full Changelog: https://github.com/qiboteam/qibo/compare/v0.1.7...v0.1.8