StrawberryFields 0.21.0

Release 0.21.0

on Python PyPI

New features since last release

• A Result.metadata property is added to retrieve the metadata of a job result. (#663)

• A setter method for Result.state is added for setting a state for a local simulation if a state has not previously been set. (#663)

• Functions are now available to convert between XIR and Strawberry Fields programs. (#643)

  For example,

  prog = sf.Program(3)
  eng = sf.Engine("gaussian")
  
  with prog.context as q:
      ops.Sgate(0, 0) | q[0]
      ops.Sgate(1, 0) | q[1]
      ops.BSgate(0.45, 0.0) | (q[0], q[2])
      ops.MeasureFock() | q[0]
  
  xir_prog = sf.io.to_xir(prog)

  resulting in the following XIR script

  >>> print(xir_prog.serialize())
  Sgate(0, 0) | [0];
  Sgate(1, 0) | [1];
  BSgate(0.45, 0.0) | [0, 2];
  MeasureFock | [0];

Bug fixes

• The TDMProgram.compile_info and TDMProgram.target fields are now set when a TDMProgram is compiled using the "TDM" compiler. (#659)

• Updates Program.assert_max_number_of_measurements to expect the maximum number of measurements from the device specification as a flat dictionary entry instead of a nested one. (#662)

  "modes": {
      "pnr_max": 20,
      "homodyne_max": 1000,
      "heterodyne_max": 1000,
  }

  instead of

  "modes": {
      "max": {
          "pnr": 20,
          "homodyne": 1000,
          "heterodyne": 1000,
      }
  }

Documentation

• README has been ported to Markdown. (#664)

Contributors

This release contains contributions from (in alphabetical order):

Theodor Isacsson