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feat: Add almost all missing pure quantum ops from pytket to Tk2Op #430

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Adds most of the pure gates from https://docs.rs/tket-json-rs/latest/tket_json_rs/optype/enum.OpType.html.

This is still missing some ops:

  • Gates with n-qubit controls. That requires computing the signature dynamically, I'll add an issue for it.
  • Barrier. Related to the previous point.
  • Global Phase. I'm not sure if we want an explicit gate for it? We should discuss it first.
  • PhaseGadget. It's defined in tket-json-rs, but it doesn't appear in the pytket documentation?
  • Boxes. That needs explicit support (Translate TKET1 boxes #44)

I added docstrings, but they are missing the unitary definition. We need to add latex rendering to our rustdocs for that (I'll add an issue).

I filled some commutation properties in Tk2Op::qubit_commutation, but I'm sure its missing some more.

Closes #428

@aborgna-q aborgna-q requested a review from cqc-alec June 25, 2024 15:28
@aborgna-q aborgna-q marked this pull request as ready for review June 25, 2024 15:28
@aborgna-q aborgna-q requested a review from a team as a code owner June 25, 2024 15:28
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codecov bot commented Jun 25, 2024

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.33%. Comparing base (a6e9e13) to head (11557c6).

Additional details and impacted files
@@            Coverage Diff             @@
##             main     #430      +/-   ##
==========================================
- Coverage   81.00%   80.33%   -0.67%     
==========================================
  Files          59       59              
  Lines        5838     5971     +133     
  Branches     5349     5440      +91     
==========================================
+ Hits         4729     4797      +68     
- Misses        870      939      +69     
+ Partials      239      235       -4     
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ss2165 commented Jun 25, 2024

I'm not sure we want to do this....I wanted to keep the core opset small and rebase in/out as necessary.

Most of these ops are only relevant to certain passes.

RxF64 = auto()
RyF64 = auto()
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This is not related to this PR, but I wonder why we added the "F64" suffix to Rx, Ry and Rz, but not to other operations that have angle parameters (e.g. U1).

(I actually prefer without, for conciseness.)

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Yes, I was going to propose dropping the suffix in another PR

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Im not sure we want to do this....I wanted to keep the core opset small and rebase in/out as necessary.

Most of these ops are only relevant to certain passes.

Fair enough, I guess we should make different extensions at some point for the more exotic gates.

We do have some holes though that we could fix now;
e.g. there's Tk2Op::ZZPhase but no XXPhase.

Or do you think we should forego symmetry and keep it as minimal as possible?

aborgna-q and others added 2 commits June 25, 2024 17:09
Co-authored-by: Alec Edgington <54802828+cqc-alec@users.noreply.github.com>
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ss2165 commented Jun 25, 2024

don't care too much about symmetry, zzphase is a native gate on H-series so convenient to add

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Define missing pure operations from pytket as Tk2Ops
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