Qibo

What's Changed
* 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

New Contributors
* 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

What's Changed
* 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

New Contributors
* shangtai made their first contribution in https://github.com/qiboteam/qibo/pull/599

**Full Changelog**: https://github.com/qiboteam/qibo/compare/v0.1.7...v0.1.8-rc0

What's Changed
* removing requirements by scarrazza in https://github.com/qiboteam/qibo/pull/484
* Using actions v2 by scarrazza in https://github.com/qiboteam/qibo/pull/485
* adding doctest to actions by scarrazza in https://github.com/qiboteam/qibo/pull/488
* Fix error message in distcircuit.py by mlazzarin in https://github.com/qiboteam/qibo/pull/490
* Fix distributed circuit without gates execution by stavros11 in https://github.com/qiboteam/qibo/pull/491
* Remove LEAST_SIGNIFICANT_QUBIT flag by mlazzarin in https://github.com/qiboteam/qibo/pull/494
* adding doctest by andrea-pasquale in https://github.com/qiboteam/qibo/pull/487
* updating docs by scarrazza in https://github.com/qiboteam/qibo/pull/493
* Reduce import qibo time by stavros11 in https://github.com/qiboteam/qibo/pull/496
* Remove custom backend classes by stavros11 in https://github.com/qiboteam/qibo/pull/500
* Fix dtype of CZ matrix by mlazzarin in https://github.com/qiboteam/qibo/pull/503
* Remove some hard-coded ``np.linalg`` calls from tests by mlazzarin in https://github.com/qiboteam/qibo/pull/501
* Allow multi-qubit unitaries for qibojit backend by stavros11 in https://github.com/qiboteam/qibo/pull/499
* Limiting qibotf actions for py36 by scarrazza in https://github.com/qiboteam/qibo/pull/508
* Fix AAVQE example with qibotf by mlazzarin in https://github.com/qiboteam/qibo/pull/507
* updating docs for backends by scarrazza in https://github.com/qiboteam/qibo/pull/511
* check minimum version for backends by scarrazza in https://github.com/qiboteam/qibo/pull/510
* first AAVQE added by nicolezattarin in https://github.com/qiboteam/qibo/pull/475
* disabling py36 by scarrazza in https://github.com/qiboteam/qibo/pull/513
* Remove hardware backend by stavros11 in https://github.com/qiboteam/qibo/pull/509
* Minor fixes in the docs by mlazzarin in https://github.com/qiboteam/qibo/pull/515
* Add AAVQE example to doctests by mlazzarin in https://github.com/qiboteam/qibo/pull/518
* Fix CI running twice by mlazzarin in https://github.com/qiboteam/qibo/pull/520
* Fix CPU fallback by mlazzarin in https://github.com/qiboteam/qibo/pull/516
* adding qgan class by bpcarlos in https://github.com/qiboteam/qibo/pull/498
* State in computational basis by stavros11 in https://github.com/qiboteam/qibo/pull/521
* Add T, S gates by mlazzarin in https://github.com/qiboteam/qibo/pull/525
* Fix probabilities do not sum to 1 by mlazzarin in https://github.com/qiboteam/qibo/pull/528
* Move CPU fallback for frequencies by mlazzarin in https://github.com/qiboteam/qibo/pull/527
* Fix qibo tests to support CuQuantum Backend by andrea-pasquale in https://github.com/qiboteam/qibo/pull/529
* Fix `test_prints.py` when cuquantum is installed by stavros11 in https://github.com/qiboteam/qibo/pull/531
* Installation instructions for cuQuantum backend by andrea-pasquale in https://github.com/qiboteam/qibo/pull/534
* Fix engine not renamed to platform in some tests by mlazzarin in https://github.com/qiboteam/qibo/pull/535
* using qibojit main code in actions by scarrazza in https://github.com/qiboteam/qibo/pull/537
* Upgrade `qibo.set_backend()` to support platform setting by stavros11 in https://github.com/qiboteam/qibo/pull/533
* Add S and T gates to `circuit.draw()` by stavros11 in https://github.com/qiboteam/qibo/pull/538
* added fermionic swap, working in numpy by AdrianPerezSalinas in https://github.com/qiboteam/qibo/pull/536
* Test all available platforms automatically by stavros11 in https://github.com/qiboteam/qibo/pull/539
* Remove some coverage exceptions by stavros11 in https://github.com/qiboteam/qibo/pull/544
* Fix message error in distributed circuit by andrea-pasquale in https://github.com/qiboteam/qibo/pull/543
* add python 3.10 in actions by scarrazza in https://github.com/qiboteam/qibo/pull/547
* add citing qibo page in docs by scarrazza in https://github.com/qiboteam/qibo/pull/548
* Implement state deep copy by stavros11 in https://github.com/qiboteam/qibo/pull/549

New Contributors
* andrea-pasquale made their first contribution in https://github.com/qiboteam/qibo/pull/487
* nicolezattarin made their first contribution in https://github.com/qiboteam/qibo/pull/475

**Full Changelog**: https://github.com/qiboteam/qibo/compare/v0.1.6...v0.1.7

What's Changed
* removing requirements by scarrazza in https://github.com/qiboteam/qibo/pull/484
* Using actions v2 by scarrazza in https://github.com/qiboteam/qibo/pull/485
* adding doctest to actions by scarrazza in https://github.com/qiboteam/qibo/pull/488
* Fix error message in distcircuit.py by mlazzarin in https://github.com/qiboteam/qibo/pull/490
* Fix distributed circuit without gates execution by stavros11 in https://github.com/qiboteam/qibo/pull/491
* Remove LEAST_SIGNIFICANT_QUBIT flag by mlazzarin in https://github.com/qiboteam/qibo/pull/494
* adding doctest by andrea-pasquale in https://github.com/qiboteam/qibo/pull/487
* updating docs by scarrazza in https://github.com/qiboteam/qibo/pull/493
* Reduce import qibo time by stavros11 in https://github.com/qiboteam/qibo/pull/496
* Remove custom backend classes by stavros11 in https://github.com/qiboteam/qibo/pull/500
* Fix dtype of CZ matrix by mlazzarin in https://github.com/qiboteam/qibo/pull/503
* Remove some hard-coded ``np.linalg`` calls from tests by mlazzarin in https://github.com/qiboteam/qibo/pull/501
* Allow multi-qubit unitaries for qibojit backend by stavros11 in https://github.com/qiboteam/qibo/pull/499
* Limiting qibotf actions for py36 by scarrazza in https://github.com/qiboteam/qibo/pull/508
* Fix AAVQE example with qibotf by mlazzarin in https://github.com/qiboteam/qibo/pull/507
* updating docs for backends by scarrazza in https://github.com/qiboteam/qibo/pull/511
* check minimum version for backends by scarrazza in https://github.com/qiboteam/qibo/pull/510
* first AAVQE added by nicolezattarin in https://github.com/qiboteam/qibo/pull/475
* disabling py36 by scarrazza in https://github.com/qiboteam/qibo/pull/513
* Remove hardware backend by stavros11 in https://github.com/qiboteam/qibo/pull/509

New Contributors
* andrea-pasquale made their first contribution in https://github.com/qiboteam/qibo/pull/487
* nicolezattarin made their first contribution in https://github.com/qiboteam/qibo/pull/475

**Full Changelog**: https://github.com/qiboteam/qibo/compare/v0.1.6...v0.1.7-rc1

What's Changed
* removing requirements by scarrazza in https://github.com/qiboteam/qibo/pull/484
* Using actions v2 by scarrazza in https://github.com/qiboteam/qibo/pull/485
* adding doctest to actions by scarrazza in https://github.com/qiboteam/qibo/pull/488
* Fix error message in distcircuit.py by mlazzarin in https://github.com/qiboteam/qibo/pull/490
* Fix distributed circuit without gates execution by stavros11 in https://github.com/qiboteam/qibo/pull/491
* Remove LEAST_SIGNIFICANT_QUBIT flag by mlazzarin in https://github.com/qiboteam/qibo/pull/494
* adding doctest by andrea-pasquale in https://github.com/qiboteam/qibo/pull/487
* updating docs by scarrazza in https://github.com/qiboteam/qibo/pull/493
* Reduce import qibo time by stavros11 in https://github.com/qiboteam/qibo/pull/496
* Remove custom backend classes by stavros11 in https://github.com/qiboteam/qibo/pull/500
* Fix dtype of CZ matrix by mlazzarin in https://github.com/qiboteam/qibo/pull/503
* Remove some hard-coded ``np.linalg`` calls from tests by mlazzarin in https://github.com/qiboteam/qibo/pull/501
* Allow multi-qubit unitaries for qibojit backend by stavros11 in https://github.com/qiboteam/qibo/pull/499

New Contributors
* andrea-pasquale made their first contribution in https://github.com/qiboteam/qibo/pull/487

**Full Changelog**: https://github.com/qiboteam/qibo/compare/v0.1.6...v0.1.7-rc0

What's Changed
* adding docker images for tags (482) scarrazza
* drawing Unitary gates (478) scarrazza
* updating documentation (467) scarrazza
* Update benchmark docs (481) stavros11
* Fix some examples in docstrings (480) mlazzarin
* Remove sympy.expand call when constructing SymbolicHamiltonian (476) stavros11
* Update fusion documentation (479) stavros11
* Fix scalar mutliplication of ``SymbolicTerm`` (474) stavros11
* Updating gate fusion (461) stavros11
* Rename ``Gate.on_qubits()`` to ``Gate._on_qubits()`` (473) mlazzarin
* Fix tests about `print` statements (465) mlazzarin
* Minor fix in the documentation (468) mlazzarin
* Remove unused flag from AbstractCircuit class (463) mlazzarin
* normalizing probs (460) scarrazza
* adding profile file for backends (457) scarrazza
* using abstract backend attributes (458) scarrazza
* MultiGPU for qibojit (453) stavros11
* removing version lock for python 3.7 and linux (456) scarrazza
* fixing CI with numba and py3.7 (454) scarrazza
* replacing unitary with matrix (447) scarrazza
* gates refactor (449) scarrazza
* EntanglementEntropy use circuits with fixed nqubits (448) scarrazza
* Fix gate.matrix property (446) stavros11
* Remove TrotterHamiltonian (426) stavros11
* Set threads warnings (443) stavros11
* Add qibojit backend (427) stavros11
* Make qibojit default backend and update warnings (436) stavros11
* adding qibojit to CI (437) scarrazza
* disabling parallel evaluation on darwin (438) scarrazza
* documentation update (435) scarrazza
* Set number of threads for qibojit (434) stavros11
* Fixes for cupy backend (432) stavros11
* Set threshold for using Metropolis custom op (428) stavros11
* Hamiltonian expectation using terms (424) stavros11
* Tensorflow not installed warning (425) stavros11
* icarusq (422) scarrazza
* Small Grover change (421) igres26
* Fix `set_device` test for GPU (417) stavros11
* updating qibotf docs (416) scarrazza
* fixing CI (420) scarrazza
* Load custom operators from external library (398) stavros11
* adding version checks for backends (412) scarrazza
* documentation upgrade (411) scarrazza
* Docs improvements (399) scarrazza
* removing zpow and czpow gates (409) scarrazza
* Complex numbers in sympy Hamiltonians (410) stavros11
* Adjusts all tests to new format (406) stavros11
* Set test backend in conftest (407) stavros11
* Remove matmuleinsum backend (404) stavros11
* refactoring for qibotf (400) scarrazza
* fixing tests for numpy/qibotf (403) scarrazza
* Reuploading fix (401) AdrianPerezSalinas
* Falqon (378) AdrianPerezSalinas
* Make matrices backend agnostic (402) stavros11
* moving distributed circuit into core (395) scarrazza
* backends auto-discovery (394) scarrazza
* documentation instructions (393) scarrazza
* Grover model (364) igres26
* Examples grover (389) AdrianPerezSalinas

New Contributors
* mlazzarin made their first contribution in https://github.com/qiboteam/qibo/pull/463

**Full Changelog**: https://github.com/qiboteam/qibo/compare/v0.1.6-rc1...v0.1.6