[QHC-833] Improving digital Transpilation

[GuillermoAbadLopez]

TODOs for this PR:

(each of the next points is pretty big deal, so check them all please 🙌🙃)

• Move optimize flag, for actual optional optimizations (& Improve optimize word use in methods names)
• Make Transpilation/execute/compile only for single circuits (unify code standard across qililab)
• Make Transpilation efficient, by not constructing the Circuit class so many times, between methods
• Pass a transpilation kwargs instead of so many args in platform/qililab's execute(...)
• Improve documentation on transpilation, simplifying it in execute()'s, and moving it to a new section.
• Cover/change test for all of this.

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You will see two empty methods, in this next PR I will fill them:

bunch_drag_gates(...), delete_gates_with_no_amplitude(...)

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The documentation after this PR looks like:

For the platform.execute():

For the module about Transpilation:

For the Transpiler.transpile_circuit():

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🔗Pullpo.io Slack channel

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AI Analysis

Review:

The changes in circuit_transpiler.py to add phases from RZs and CZs gates to Drag gates, optimize transpilation by combining consecutive Drags, and adding explanatory comments seem well-structured and clear. It's great to see the addition of optimization methods for the transpilation process. In circuit_optimizer.py, the addition of the method to add phases to Drag gates and optimize transpilation by combining consecutive Drags aligns well with the changes made in circuit_transpiler.py. It's good to maintain consistency across the codebase.

Detailed file changes

(dropdown):

In circuit_transpiler.py:

• Added a method to add phases from RZs and CZs gates to Drag gates in the circuit.
• Modified the transpile_circuits method to use the new method to add phases to Drags.
• Added comments explaining the process of adding phases from RZs and CZs gates to Drags.
• Added a method to optimize transpilation by bunching consecutive Drag gates together into a single one.

In circuit_optimizer.py:

• Added a method to add phases from RZs and CZs gates to Drag gates in the circuit.
• Modified the cancel_pairs_of_hermitian_gates method signature to return a Circuit.
• Added a method to optimize transpilation by bunching consecutive Drag gates together into a single one.

[linear]

QHC-833 Transpilation feedback/improvements

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.78%. Comparing base (7226edf) to head (7fb7339).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #862   +/-   ##
=======================================
  Coverage   96.77%   96.78%           
=======================================
  Files         221      221           
  Lines        7756     7765    +9     
=======================================
+ Hits         7506     7515    +9     
  Misses        250      250           

Flag	Coverage Δ
unittests	96.78% <100.00%> (+<0.01%)	⬆️

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