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Chris Elenbaas

PROFILE

Chris Elenbaas

Chris Elenbaas contributed to the QuTech-Delft/OpenSquirrel repository by developing and refining quantum circuit decomposition features, focusing on robust gate transformations such as decomposing CNOT gates into CZ gates and SWAP gates into CNOTs. He implemented these features in Python using Qiskit, ensuring correctness through comprehensive integration and unit testing. Chris also improved code quality by enhancing type safety, code formatting, and documentation, which streamlined onboarding and reduced maintenance risk. His work included test automation, technical writing, and repository cleanup, resulting in more reliable quantum gate tooling and clearer documentation that supports both ongoing development and cross-team collaboration.

Overall Statistics

Feature vs Bugs

57%Features

Repository Contributions

18Total
Bugs
3
Commits
18
Features
4
Lines of code
473
Activity Months3

Work History

January 2025

1 Commits

Jan 1, 2025

January 2025 monthly summary for QuTech-Delft/OpenSquirrel focusing on test maintenance and clarity. Delivered a targeted test cleanup to remove an outdated comment about gate decompositions, reducing noise in the test suite and preventing misinterpretation of test failures. This aligns with ongoing efforts to improve test readability and maintainability without altering behavior.

December 2024

12 Commits • 3 Features

Dec 1, 2024

December 2024 monthly summary for QuTech-Delft/OpenSquirrel: Delivered robust gate-decomposition features, expanded test coverage, and documentation improvements with a focus on business value and reliability. Key features delivered: SWAP gate decomposition into three CNOTs with tests and docs; comprehensive docs for gate decompositions (SWAP→CNOT, CNOT→CZ) and tutorial wording improvements; McKay decomposer testing enhancements including single-qubit Clifford gates and spin-backend considerations. Major bug fixes and maintenance: integration tests fixed and repository cleanup (removal of unused default_gates.py). Overall impact: more robust quantum gate tooling, clearer docs, and stronger CI reliability, reducing onboarding time and risk for deployments. Technologies/skills demonstrated: gate decomposition theory and implementation, test-driven development, docs authoring, CI hygiene, and cross-team collaboration.

November 2024

5 Commits • 1 Features

Nov 1, 2024

November 2024 Monthly Summary for QuTech-Delft/OpenSquirrel focusing on delivering a robust gate decomposition feature, improving type safety and code quality, and extending test coverage. The month emphasizes business value through correct gate decomposition for quantum circuits, cleaner code, and stronger maintainability to support faster iteration and reliability.

Activity

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Quality Metrics

Correctness95.6%
Maintainability95.6%
Architecture90.0%
Performance87.8%
AI Usage20.0%

Skills & Technologies

Programming Languages

MarkdownPythonQiskit

Technical Skills

Circuit DecompositionCircuit SynthesisCode CleanupCode FormattingCode LintingDocumentationGate DecompositionGate ManipulationIntegration TestingPythonPython DevelopmentQuantum ComputingSoftware DevelopmentSoftware EngineeringSoftware Testing

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

QuTech-Delft/OpenSquirrel

Nov 2024 Jan 2025
3 Months active

Languages Used

PythonMarkdownQiskit

Technical Skills

Circuit DecompositionCode FormattingCode LintingGate ManipulationPythonPython Development

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