Automated Synthesis of Encoder Circuits for Stabilizer Codes #275
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
burgholzer
added
feature
![github-advanced-security[bot]](https://avatars.githubusercontent.com/in/57789?s=60&v=4){kind=small}
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #275 +/- ##
=======================================
+ Coverage 83.5% 87.3% +3.7%
=======================================
Files 49 51 +2
Lines 4148 4318 +170
Branches 372 372
=======================================
+ Hits 3467 3770 +303
+ Misses 681 548 -133
*This pull request uses carry forward flags. Click here to find out more.
|
Comment on lines
75
to
88
| # def gate_optimal_encoding_circuit(code: CSSCode) -> QuantumCircuit: | ||
| # """Synthesize an encoding circuit for the given CSS code using the minimal number of gates. | ||
|
|
||
| # Args: | ||
| # code: The CSS code to synthesize the encoding circuit for. | ||
| # optimize_depth: Whether to optimize the depth of the circuit. | ||
|
|
||
| # Returns: | ||
| # The synthesized encoding circuit and the qubits that are used to encode the logical qubits. | ||
| # """ | ||
| # logging.info("Starting optimal encoding circuit synthesis.") | ||
| # checks, logicals, _ = _get_matrix_with_fewest_checks(code) | ||
| # checks, cnots = heuristic_gaussian_elimination(np.vstack((checks, logicals)), parallel_elimination=optimize_depth) | ||
| # cnots = cnots[::-1] |
Check notice
Code scanning / CodeQL
Commented-out code
pehamTom
force-pushed
the
encoding-circuits
branch
from
c1e973b
to
28d48c8
Compare
These will be needed later for the encoder synthesis.
Encoding wasn't optimal before. Consider the logicals as a group.
pehamTom
force-pushed
the
encoding-circuits
branch
from
28d48c8
to
acec0b3
Compare
Also added example circuits for the five qubit code and the 8,3,3 Gottesman code. Also moved Notebooks to example folder.
Messed up in the merge.
4 tasks
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Description
This PR introduces functionality to automatically synthesize encoder circuits for arbitrary stabilizer codes. Since this is closely related to state preparation circuit synthesis, this PR refactors and unifies the respective synthesis methods into a
circuit_synthesismodule.Planned Features:
Optimal (gate or depth) circuit synthesis for non-CSS ancilla statesHeuristic circuit synthesis for non-CSS ancilla statesThe last parts were canceled because qecc functionality already allows for the construction of such state preparation circuits.
Checklist: