Release 0.12.0

New features since last release

Devices from Cirq's Pasqal submodule are now available for use. (#40).

A simulator device compatible with Pasqal's neutral-atom model can be invoked via the name "cirq.pasqal", e.g.,

dev = qml.device("cirq.pasqal", control_radius=1.0, wires=3)

Contributors

This release contains contributions from (in alphabetical order):

Nathan Killoran, Josh Izaac

Release 0.11.0

New features

• One can now specify any string or number as a custom wire label, and use these labels to address subsystems on the device: (#37) (#42)

  dev = qml.device('cirq.simulator', wires=['q1', 'ancilla', 0, 1])
  
  @qml.qnode(dev)
  def circuit():
      qml.Hadamard(wires='q1')
      qml.CNOT(wires=[1, 'ancilla'])
      return qml.expval(qml.PauliZ('q1'))

Contributors

This release contains contributions from (in alphabetical order):

Josh Izaac, Nathan Killoran, Maria Schuld

Release 0.9.0

Release 0.9.0

New features since last release

• Added a new mixedsimulator class to Cirq, which uses Cirq's
  DensityMatrixSimulator as a backend.
  #27

Documentation

• Redesigned the documentation to be consistent with other plugins.
  #25

Bug fixes

• Renamed probability to analytic_probability to support new
  changes in PennyLane.
  #24

Contributors

This release contains contributions from (in alphabetical order):

Theodor Isacsson, Nathan Killoran, Maria Shuld, Antal Száva

Release 0.8

Improvements

• Ported the CirqDevice class to use the new QubitDevice base class,
  enabling the use of tensor observables.
  #19

• Added support for inverse operations by defining the .inv() method
  of the CirqOperation class which uses the cirq.inverse function.
  #15

Bug fixes

• Replaced depreceated Cirq commands.
  #19

• Fix a minor bug introduced into the test suite by the release of Cirq 0.7.0.
  #18

• Fix bugs introduced into the test suite by the release of Cirq 0.6.0.
  #13

Contributors

This release contains contributions from (in alphabetical order):

Johannes Jakob Meyer, Antal Száva

Release 0.1.0

This is the first release of PennyLane-Cirq.

This release enables the use of most of PennyLane's core functionality in conjunction with the simulator backend of Cirq.