Release 0.27.0

New features since last release

• Support ISWAP, SISWAP, and their adjoints. (#114)

• Support a variety of operations raised to a power. (#115)

Breaking changes

• Removed the unnecessary CPhase and ISWAP operations from the plugin's custom support because PennyLane supports them. (#115)

Improvements

• Pass all the qubits as qubit_order parameter to force the simulator not to ignore idle qubits. (#111)

Contributors

This release contains contributions from (in alphabetical order):

Oumarou Oumarou, Matthew Silverman

Release 0.24.0

Bug fixes

• Defines the missing returns_state entry of the capabilities dictionary for devices. (#107)

Contributors

This release contains contributions from (in alphabetical order):

Antal Száva.

Release 0.22.0

Improvements

• Changed to using cirq_pasqal instead of cirq.pasqal as per a deprecation cycle in Cirq. (#90)

• Changed the requirements of PennyLane-Cirq to only contain cirq-core and cirq-pasqal. (#94)

Contributors

This release contains contributions from (in alphabetical order):

Jay Soni, Antal Száva

Release 0.19.0

Improvements

• Expectation values are now computed using the simulate_expectation_values function from Cirq for cirq.simulator and cirq.mixedsimulator. (#81)

Contributors

This release contains contributions from (in alphabetical order):

Romain Moyard

Release 0.17.1

Improvements

We support Cirq version 0.12.0. (#77)

Contributors

This release contains contributions from (in alphabetical order):

Romain Moyard

Release 0.17.0

Breaking changes

We do not support the new Cirq version 0.12.0 because of compatibility problems with qsim. (#73)

Contributors

This release contains contributions from (in alphabetical order):

Romain Moyard

Release 0.16.0

New features

• Added support for the new qml.Projector observable in PennyLane v0.16 to the Cirq devices. (#62)

Breaking changes

• Deprecated Python 3.6. (#65)

Bug fixes

• Fix data type bug for mixed simulator when using QubitStateVector. (#63)

• Fixed issue when using a subset of wires with BasisState. (#61)

Contributors

This release contains contributions from (in alphabetical order):

Theodor Isacsson, Romain Moyard, Vincent Wong

Release 0.15.0

Breaking changes

• For compatibility with PennyLane v0.15, the analytic keyword argument has been removed from all devices. Statistics can still be computed analytically by setting shots=None. (#57) (#58)

Contributors

This release contains contributions from (in alphabetical order):

Josh Izaac, Chase Roberts

Release 0.14.0

New features

• Added support for custom simulator objects for use with the Floq service. (#51)

Contributors

This release contains contributions from (in alphabetical order):

Chase Roberts

Release 0.13.0

Improvements

• Added support for iSWAP and CPhase gate operations. (#45)

Bug fixes

• Removed import of qsimcirq from __init__.py, allowing other devices in this plugin to work without qsimcirq being installed. (#46)

Contributors

This release contains contributions from (in alphabetical order):

Theodor Isacsson