qibo 0.2.22

What's Changed

• Fix GeneralizedRBS decomposition + optimize RBS decomposition according to number of controls by @renatomello in #1722
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #1717
• Alternative fidelities for mixed states by @renatomello in #1723
• Refactor quantum_info.random_clifford by @renatomello in #1708
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #1724
• Clifford measurement fix by @BrunoLiegiBastonLiegi in #1639
• Updating publication list by @scarrazza in #1725
• Fixing u1<-> p equivalence in qasm by @andre-juan in #1735
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #1737
• quantum_info module refactor and customization by @BrunoLiegiBastonLiegi in #1583
• feat: add cudaq exporter by @GabrielePalazzo in #1738
• feat: Import circuits from cudaq by @GabrielePalazzo in #1742

New Contributors

• @andre-juan made their first contribution in #1735
• @GabrielePalazzo made their first contribution in #1738

Full Changelog: v0.2.21...v0.2.22

qibo 0.2.21

What's Changed

• Permutation synthesis and Li's sparse encoder by @qumaciel in #1694
• Support simultaneously diagonalizable terms in exp_from_circuit by @BrunoLiegiBastonLiegi in #1686
• Merge and simplify common terms in a SymbolicHamiltonian after expanding by @chmwzc in #1664
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #1703
• Add LABS Hamiltonian by @renatomello in #1704
• Adding gradients required for adjoint differentiation by @andrea-pasquale in #1707
• Add gates.FanOut gate by @renatomello in #1698
• Update qibojit branch by @renatomello in #1714
• Support for gate.Unitary in Clifford backend by @AlejandroSopena in #1700

New Contributors

• @qumaciel made their first contribution in #1694

Full Changelog: v0.2.20...v0.2.21

qibo 0.2.20

What's Changed

• Bump pillow from 11.2.1 to 11.3.0 by @dependabot[bot] in #1680
• Implementing Gate.on_qubits methods to work on noisy channels by @renatomello in #1646
• expectation_from_samples fix by @BrunoLiegiBastonLiegi in #1681
• Two-qubit unitary transpiler which deals with #1673 by @joan-ainaud in #1682
• Add Backend.calculate_matrix_log and Backend.calculate_matrix_sqrt + refactor Backend.calculate_matrix_exp + add quantum_info.matrix_logarithm and quantum_info.matrix_sqrt by @renatomello in #1684
• added plot state function for issue #689 by @sergiomtzlosa in #1672
• Fix to data-based mitigation methods by @BrunoLiegiBastonLiegi in #1690
• Small fix to visualize_state by @BrunoLiegiBastonLiegi in #1693

Full Changelog: v0.2.19...v0.2.20

qibo 0.2.19

What's Changed

• Remove outdated comments in gates.abstract.Gate class by @renatomello in #1634
• Remove unnecessary backend methods by @renatomello in #1636
• Bump tornado from 6.4.2 to 6.5.1 by @dependabot in #1644
• New backend specialised in Hamming-weight-preserving circuits by @renatomello in #1565
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #1647
• [unitaryHack 2025] Implementation of Dicke state preparation by @AprilSweettooth in #1650
• [unitaryHack 2025] Graph state encoding by @victor-onofre in #1649
• Expectation from samples improvements by @BrunoLiegiBastonLiegi in #1660
• [UnitaryHack2025] Implement all-to-all and simple Dicke State generation circuits by @joan-ainaud in #1654
• Bump requests from 2.32.3 to 2.32.4 by @dependabot in #1665
• Casting expectation values to real in expectation_from_samples by @MatteoRobbiati in #1667
• python 3.13.5 in the CI by @BrunoLiegiBastonLiegi in #1671
• Enable TOFFOLI.decompose and add CCZ decomposition into native gate set that includes the CZ gate by @renatomello in #1670
• [unitaryHack 2025] Refactor gate decomposition to support controlled gates by @GiacomoFrn in #1653
• [unitaryHack 2025] Generalization of the transpilation of arbitrary two-qubit by @AprilSweettooth in #1656
• Minor documentation fixes in models.encodings + fix coverage by @renatomello in #1666
• Adding _check_backend to CMA optimizer by @andrea-pasquale in #1674
• Bump urllib3 from 2.4.0 to 2.5.0 by @dependabot in #1675
• Allowing circuit execution using float32 and float64 dtypes by @renatomello in #1625

New Contributors

• @AprilSweettooth made their first contribution in #1650
• @victor-onofre made their first contribution in #1649
• @joan-ainaud made their first contribution in #1654
• @GiacomoFrn made their first contribution in #1653

Full Changelog: v0.2.18...v0.2.19

qibo 0.2.18

What's Changed

• review plot out of bounds qubit number - bug #1497 by @sergiomtzlosa in #1623
• pytest --gpu-only fix + GPU backends shots sampling by @BrunoLiegiBastonLiegi in #1616
• Making functions in models.encodings backend-aware by @renatomello in #1622
• Enhanced gates.Unitary draw with matplotlib by @sergiomtzlosa in #1618
• Add sparse_encoder to models.encodings by @renatomello in #1591
• Drop noise_model.py by @renatomello in #1629
• Downgrade sympy dependency by @renatomello in #1628

Full Changelog: v0.2.17...v0.2.18

qibo 0.2.17

What's Changed

• SymbolicHamiltonian refactor by @BrunoLiegiBastonLiegi in #1548
• Include T gate in qibo.matrices by @renatomello in #1596
• Remove while loop in error_sensitive_circuit by @AlejandroSopena in #1597
• Fix gates.GeneralizedRBS.apply method by @renatomello in #1594
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #1600
• Matrix representation of gates.GeneralizedRBS independent of qubit order by @AlejandroSopena in #1599
• Migrating to Numpy 2.0 by @BrunoLiegiBastonLiegi in #1582
• Support Python 3.13 by @alecandido in #1484
• Fix clustering bug when plotting single-qubit circuits by @sergiomtzlosa in #1608
• Add binary_encoder parameterized in hyperspherical coordinates by @renatomello in #1584
• Implementing function to visualize states in UI module by @MatteoRobbiati in #1605
• bug fix #1609 by @sergiomtzlosa in #1610
• custom labels for plot_circuit drawing function - issue #1611 by @sergiomtzlosa in #1612
• Use qibojit main for tests by @alecandido in #1619
• Fix Circuit.get_parameters(format="flatlist") in the presence of 0-dimensional tensors by @renatomello in #1614
• Add Lanczos algorithm to quantum_info.linalg_operations by @renatomello in #1604
• Make backend.samples_to_binary use the backend's engine by @BrunoLiegiBastonLiegi in #1615

Full Changelog: v0.2.16...v0.2.17

qibo 0.2.16

What's Changed

• Bump jinja2 from 3.1.4 to 3.1.5 by @dependabot in #1557
• Improving docstrings in final qubit mapping, w/ {logical: physical} by @GuillermoAbadLopez in #1563
• Add hamming_weight_encoder to models.encodings by @renatomello in #1560
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #1568
• Fix StarConnectivtyPlacer/Router._check_star_connectivity for len(nodes)>5 by @GuillermoAbadLopez in #1567
• Add nontrivial entangling layers to models.encodings.entangling_layer by @renatomello in #1559
• Fix transpiler tests failing in the master branch by @renatomello in #1569
• Selfhosted GPU workflow and GPU Tests fixes by @BrunoLiegiBastonLiegi in #1561
• Modify models.encodings.hamming_weight_encoder to upload data in the lexicographical order by @renatomello in #1572
• Fix docstring of gates.PRX by @renatomello in #1571
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #1574
• Updating cuquantum version by @andrea-pasquale in #1573
• Cupy matrices by @BrunoLiegiBastonLiegi in #1558
• Adding wire_names to circuit.raw and from_dict by @BrunoLiegiBastonLiegi in #1576
• Changed the directory to selfhosted tests to $(mktemp -d) by @BrunoLiegiBastonLiegi in #1578
• Selfhosted GPU tests restricted to GPU backends only by @BrunoLiegiBastonLiegi in #1579

New Contributors

• @GuillermoAbadLopez made their first contribution in #1563

Full Changelog: v0.2.15...v0.2.16

qibo 0.2.15

What's Changed

• qibo.ui import of matplotlib.pyplot by @BrunoLiegiBastonLiegi in #1537
• Add general Heisenberg Hamiltonian and XXX model by @renatomello in #1538
• Fix import in Advanced Examples by @renatomello in #1539
• Graph not built if no edges are provided by @Edoardo-Pedicillo in #1540
• Update Documentation for wire_names and _Global by @csookim in #1531
• Fix documentation of models.circuit.Circuit by @renatomello in #1544
• Add decomposition for gates.CRY by @renatomello in #1547
• Remove dbi by @Edoardo-Pedicillo in #1542
• Minor bug fix to expectation_from_samples by @chmwzc in #1545
• Minor fix to qibo.transpiler.placer.Subgraph by @carlos-luque in #1549
• Renaming backend methods related to vector and matrix norms by @renatomello in #1520
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #1552
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #1553
• Add models.encodings.binary_encoder for real-valued data by @renatomello in #1551
• Fix bug in qasm parser when gates.U3 is present. by @renatomello in #1555
• Updating GST to accept parameterised gates by @mho291 in #1534

New Contributors

• @chmwzc made their first contribution in #1545
• @carlos-luque made their first contribution in #1549

Full Changelog: v0.2.14...v0.2.15

qibo 0.2.14

What's Changed

• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #1503
• Expectation value of observables non diagonal in the computational basis by @BrunoLiegiBastonLiegi in #1489
• Unsupported native gates by @csookim in #1504
• Temporary fix for q{i} mapping by @csookim in #1514
• Fix bug in SymbolicHamiltonian.__mul__ by @renatomello in #1517
• gates.RBS decomposition with less gates by @renatomello in #1521
• Update outdated docstrings by @renatomello in #1512
• Avoid logging for missing backends by @alecandido in #1505
• Reset Transpiler When Setting Backends by @csookim in #1526
• Transpiler refactor by @csookim in #1500
• Migrating Pytorch backend to Qiboml by @MatteoRobbiati in #1510

Full Changelog: v0.2.13...v0.2.14

qibo 0.2.13

What's Changed

• Fix docstring of quantum_info.utils.total_variation_distance by @renatomello in #1461
• Remove deprecation warning, remove old draw, and rename display as draw in Circuit class by @renatomello in #1464
• Fix definition of fidelity in quantum_info.metrics by @renatomello in #1463
• Add classical_tsallis_relative_entropy to quantum_info.entropies by @renatomello in #1469
• Remove circular dependency between MeasurementResult and M gate by @BrunoLiegiBastonLiegi in #1465
• Extend meyer_wallach_entanglement to ndarrays by @AlejandroSopena in #1451
• Add partial_transpose to quantum_info.linalg_operations by @renatomello in #1462
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #1477
• Add calculate_singular_value_decompositon as a backend method by @renatomello in #1473
• Add negativity to quantum_info.entanglement by @renatomello in #1456
• Optimizations for the qibo.quantum_info.basis.pauli_basis and vectorization function by @BrunoLiegiBastonLiegi in #1459
• Add hook to check toml files by @alecandido in #1480
• Fix bug in quantum_info.linalg_operations.matrix_power for negative powers of singular matrices by @renatomello in #1472
• Fix pytorch gradients by @Simone-Bordoni in #1450
• Skipping controlled try/except for M gate in from_dict by @BrunoLiegiBastonLiegi in #1483
• Avoid logging for missing backends by @alecandido in #1486
• Add hilbert_schmidt_inner_product to quantum_info.metrics by @renatomello in #1476
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #1488
• Add quantum_fisher_information_matrix to quantum_info.metrics by @renatomello in #1487
• Add (state) Schmidt decomposition to quantum_info.linalg_operations by @renatomello in #1471
• Internal global backend _Global by @csookim in #1440
• Add relative_tsallis_entropy to quantum_info.entropies + fix to relative_von_neumann_entropy by @renatomello in #1470
• Add GHZ circuit function by @mho291 in #1499
• Enabling plot circuit resolution through dpi argument by @MatteoRobbiati in #1435
• Migrating TensorFlowBackend to Qiboml by @MatteoRobbiati in #1479
• Add to_stinespring to quantum_info.superoperator_transformations by @renatomello in #1492

Full Changelog: v0.2.12...v0.2.13