qml.Reflection Operation

[KetpuntoG]

First block of the Amplitude amplification algorithm toolkit project

Example:

@qml.prod
def generator(wires):
    qml.Hadamard(wires=wires)

U = generator(wires=0)

dev = qml.device('default.qubit')

@qml.qnode(dev)
def circuit():

    # Initialize to the state |1>
    qml.qml.PauliX(wires=0)

    # Apply the reflection
    qml.Reflection(U)

    return qml.state()

[github-actions]

Hello. You may have forgotten to update the changelog!
Please edit doc/releases/changelog-dev.md with:

• A one-to-two sentence description of the change. You may include a small working example for new features.
• A link back to this PR.
• Your name (or GitHub username) in the contributors section.

[KetpuntoG]

[sc-55958]

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.63%. Comparing base (f9bdb32) to head (352d913).
Report is 6 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5159      +/-   ##
==========================================
- Coverage   99.65%   99.63%   -0.02%     
==========================================
  Files         399      401       +2     
  Lines       36901    36833      -68     
==========================================
- Hits        36774    36700      -74     
- Misses        127      133       +6     

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[soranjh]

Thanks @KetpuntoG. I left some general comments and questions. Please have a look at other templates, e.g., ControlledSequence, to make this template and its tests consistent with the rest.

[soranjh]

Thanks @KetpuntoG, looks great. Left some final minor comments.

[trbromley]

Thanks @KetpuntoG!

[soranjh]

Thanks @KetpuntoG , looks good!

[trbromley]

Thanks @KetpuntoG! I still have a few more comments, but overall this is looking great.

[DSGuala]

Looks good! Approved from my side.