Qiskit Aer 0.9.1

Changelog

Fixed

• Fix automatic method selection when some circuits have invalid instructions (#1371)
• Ensure error results include empry results field (#1372)
• Fix issue 1351 (#1354)
• Fix handling of bound ParameterExpressions (#1356)
• Fix 1347 (#1355)

Qiskit Aer 0.9.0

Changelog

Deprecated

• Deprecate run(qobj) (#1328)
• Deprecate snapshot instructions (#1270)
• Deprecate non-local quantum errors (#1314)

Added

• Add parameter_binds to aerbackend.run (#1317)
• Add cu and sxdg basis gates (#1326)
• Cluster backend (#1281)

Removed

• Remove code deprecated in 0.7.0 (#1311)

Fixed

• Fix issue 1258 (#1345)
• Fix normalization following approximation in MPS (#1335)
• user omp threadprivate in qv simd kernel (#1342)
• add synchronization before read/write states on GPU (#1325)
• Fix shots option (#1313)
• Fix bug in extended stabilizer simulator (#1320)
• Avoid deprecated bit index lookup in insert_noise (#1301)
• fix an issue of temporal memory allocation in avx (#1291)
• MPI parallelization fix (#1278)
• fix phase normalisation issue in scalar_t::to_complex method (#1276)
• Fixed bug in MPS::apply_matrix (#1261)
• Disable save expectation value for ext stabilizer (#1238)
• Change qubits order in multiplexer gate (#1230)
• Fix stabilizer simulator expval function (#1231)
• Fix configuration.basis_gates performance issue (#1232)
• Fixes of multi-chunk simulators (#1200)
• Normalize statevector save and snapshot for extended stabilizer method (#1221)
• Allow measure sampling with initialize (#1219)
• Add python iterables to to_json conversion method (#1217)
• Fix JSON serialized of empty data (#1218)
• Bug fix for MPS::apply_kraus (#1206)
• Disable GPU methods if no device available (#1213)

Qiskit Aer 0.8.2

Changelog

Fixed

• Disable save expectation value for ext stabilizer (#1238)
• Change qubits order in multiplexer gate (#1230)
• Fix stabilizer simulator expval function (#1231)
• Fix configuration.basis_gates performance issue (#1232)
• Fixes of multi-chunk simulators (#1200)

Qiskit Aer 0.8.1

Changelog

Fixed

• Normalize statevector save and snapshot for extended stabilizer method (#1221)
• Allow measure sampling with initialize (#1219)
• Add python iterables to to_json conversion method (#1217)
• Fix JSON serialized of empty data (#1218)
• Bug fix for MPS::apply_kraus (#1206)
• Disable GPU methods if no device available (#1213)

Qiskit Aer 0.8.0

Changelog

Added

• Add AerSimulator backend (#1194)
• Allow disabling of dependency installation in setup.py (#1135)
• Add instructions to set simulator state (#1163)
• Migrate to new provider interface (#1099)
• Support for saving statevector as ket dictionary (#820)
• Add general SaveState instruction (#1164)
• Add Fusion variations (#1110)
• Add arm64 release wheel jobs (#1162)
• Add SaveUnitary and SaveStabilizer instructions (#1136)
• Add SaveAmplitudes and SaveAmplitudesSquared instructions. (#1129)
• Add SaveProbabilities and SaveProbabilitiesDict instructions (#1117)
• Add SaveStatevector and SaveDensityMatrix instructions (#1116)
• Add new save expectation value instructions (#1101)
• Adding gates to the MPS simulator (#1088)
• Parallel Qiskit Aer (GPU + MPI) by using cache blocking transpiler (#788)
• parallelize fusion transpilation (#1103)
• Enhancement of multi-controlled gates (#1076)
• Compile CUDA on win (#1065)
• Cmake: make conan optional (#999)
• Add PauliGate to density matrix simulator (#1012)
• Multiple Pauli gates operation (#919)

Changed

• Add SaveStatevector and SaveDensityMatrix instructions (#1116)
• Add new save expectation value instructions (#1101)

Fixed

• Fixed bug in apply_kraus in matrix_product_state (#1188)
• Add reading of qubit_lo_freq from pulse Schedule config (#1185)
• Always set config.local to True (#1187)
• Fixed bug in sample_measure_using_probabilities (#1132)
• change default max_memory_mb from half to full system memory (#1152)
• Fix noise sampling for conditional gates (#1154)
• Fix macos tests in CI (#1115)
• Fix bugs in automatic updates of simulator configuration basis gates (#1109)
• Fix noise model basis_gates when constructing from device (#1108)
• Fixed normalization in MPS truncation (#1094)
• Fix condtional instructions using c_if not working for reg of size>=64 on BasicAer backend (#1089)
• Fix bug with nested omp being applied incorrectly (#1055)
• Fixed the tests and the revealed bugs (#1026)
• Corrected qubits ordering in MPS::sample_measure_using_probabilities. (#1011)
• Fixed bug in MPS::apply_kraus (#1003)
• Fix Aer provider to return new backend instances with backends/get_backend. (#1006)
• Fix bug in unsupported instructions error message (#1005)

Qiskit Aer 0.7.6

Changelog

Added

• Add arm64 release wheel jobs (#1162)

Fixed

• Fixed bug in sample_measure_using_probabilities (#1132)
• change default max_memory_mb from half to full system memory (#1152)
• Fix noise sampling for conditional gates (#1154)

Qiskit Aer 0.7.5

Changelog

Fixes

• Fix numpy compatibility with numpy < 1.20.0 in precompiled wheels (#1131)

Qiskit Aer 0.7.4

Changelog

Fixed

• Fix numpy 1.20.0 compatibility (#1115)

Qiskit Aer 0.7.3

Changelog

Fixed

• Fix bugs in automatic updates of simulator configuration basis gates (#1109)
• Fix noise model basis_gates when constructing from device (#1108)
• Fixed normalization in MPS truncation (#1094)
• Fix condtional instructions using c_if not working for reg of size>=64 on BasicAer backend (#1089)

Qiskit Aer 0.7.2

Changelog

Added

• Cmake: make conan optional (#999)

Fixed

• Fix bug with nested omp being applied incorrectly (#1055)