v1.1.1.post0

Testing and Release Infrastructure

• Add CHANGELOG.md

v1.1.1

Bug Fixes

• add handling for solution_counts=[] for annealing result

v1.1.0

Features

• Add get_devices to search devices based on criteria

Bug Fixes

• Call async_result() before calling result()
• Convert amplitude result to a complex number

v1.0.0.post1

documentation: add readthedocs link to README (#142)

v1.0.0

This is the public release of the Amazon Braket Python SDK!

The Amazon Braket Python SDK is an open source library that provides a framework that you can use to interact with quantum computing devices through Amazon Braket.

v0.6.0

Breaking Changes

• AwsDevice.properties is of type DeviceCapabilities
• LocalSimulator.properties is of type DeviceCapabilities
• AwsQpu and AwsQuantumSimulator have been removed
• Device parameters in device.run has been migrated to new format for the CreateQuantumTask API

v0.5.0

Features

• Migration to V4 API
• Addition of AwsDevice class, which will be used for both QPUs and simulators. AwsQpu and AwsQuantumSimulator will be deprecated
• Deprecation of AwsQpuArns and AwsQuantumSimulatorArns
• Modifications per repository renamings
• main is now going to be the default branch with stable changes

v0.4.2

Bug Fixes

• Add validation for compatible IR types for local simulator
• Add validation that requested states for the amplitude result type is a list

Documentation Changes

• Update IonQ execution windows in README
• Update amplitude states to be a list in examples/bell_result_types.py

v0.4.1

Features

• Add supportedResultTypes to device.properties for AwsQuantumSimulator

Bug Fixes

• For the case of tensor product observables, fix basis_rotation_instructions call on Circuit so that it does not mutate the targets of the observables
• More exception handling for bucket creation in integ tests

v0.4.0

Features

• Ability to support additional result types for gate model devices
  • The following result types are supported:
    • State vector
    • Amplitude
    • Probability
    • Expectation
    • Variance
    • Sample
  • examples/bell_result_types.py has example usage
  • When shots>0, users can request probability in the computational basis, sampling, expectation, variance, and sampling for the desired observable.
    • These values are calculated from measurements.
  • When shots=0 for simulators, users can request state vector and amplitude, as well as exact values for expectation, variance, and sampling for the desired observable.
    • Sample is not supported when shots=0
    • measurements, measurement_counts, and measurement_probabilitiesare not returned in the task result when shots=0
• Ability to check version in Python
• Increased default polling timeout for AWS devices to 5 days
• Added topology_graph as an attribute of AwsQpu that returns the topology of the QPU as a networkx graph

Breaking Changes

• When using AwsQuantumSimulator and LocalSimulator, shots is by default 0
• As part of new result types feature, .state_vector of a GateModelQuantumTaskResult is only returned when state vector is requested as a result type and shots=0
• Corrected Ising coupling gate matrix definitions using reference https://arxiv.org/abs/1707.06356.
• BraketSimulator has been moved to amazon-braket-default-simulator-python

Documentation Changes

• API documentation for new result types feature
• Updates to README and example scripts in /examples folder