Infleqtion/qLDPC
Nov 2024 – Jan 2026
15 Months active
Languages Used
PythonStimYAMLMarkdownTOMLJupyter NotebookCCython
Technical Skills
Abstract AlgebraAbstract Base ClassesAlgorithm ImplementationAlgorithm RefactoringBackend DevelopmentCI/CD
Michael A. Perlin
PROFILE
Michael A. Perlin
Michael Perlin developed and maintained the Infleqtion/qLDPC repository, delivering a robust quantum error correction and algebraic coding framework. He engineered core features such as decoding infrastructure, algebraic group operations, and circuit simulation, emphasizing reliability, maintainability, and performance. Using Python and C++, he implemented advanced algorithms for code construction, error correction, and data visualization, while modernizing CI/CD pipelines and improving test coverage. His work included API design, documentation, and cross-platform compatibility, addressing both backend logic and developer experience. The depth of his contributions is reflected in the breadth of features, rigorous testing, and ongoing architectural refinements throughout the codebase.
Overall Statistics
Feature vs Bugs
67%Features
Repository Contributions
711Total
Bugs
118
Commits
711
Features
243
Lines of code
20,426
Activity Months15
Your Network
12 people
Work History
January 2026
8 Commits • 5 Features
Jan 1, 2026January 2026 summary for Infleqtion/qLDPC focusing on reliability, data collection, and decoding readiness. Delivered targeted bug fixes in group operations, introduced data retrieval flexibility with a max order parameter, enforced integer outputs in weight computations, improved Quantum Tanner search workflow, and hardened the SinterDecoder path with better error handling and pre-decode validation. Release v0.2.7 of qLDPC Tools closes the cycle, enabling smoother adoption and production use.
8 Commits • 5 Features
Jan 1, 2026January 2026 summary for Infleqtion/qLDPC focusing on reliability, data collection, and decoding readiness. Delivered targeted bug fixes in group operations, introduced data retrieval flexibility with a max order parameter, enforced integer outputs in weight computations, improved Quantum Tanner search workflow, and hardened the SinterDecoder path with better error handling and pre-decode validation. Release v0.2.7 of qLDPC Tools closes the cycle, enabling smoother adoption and production use.
January 2026
December 2025
12 Commits • 4 Features
Dec 1, 2025Infleqtion/qLDPC — 2025-12: Delivered stability, reliability, and developer-experience improvements with a focus on business value and long-term maintainability. Key outcomes include a memory-leak fix in the LDPC path, modernization of the build and CI/CD pipelines, typing and code-quality improvements, and enhanced development tooling. These efforts reduce runtime risk, accelerate release cycles, and streamline maintenance for future feature work. Technologies and practices demonstrated include package dependency management, uv_build integration, mypy/ParamSpec-based typing, Python LSP tooling, and CI/CD workflow improvements.
December 2025
12 Commits • 4 Features
Dec 1, 2025Infleqtion/qLDPC — 2025-12: Delivered stability, reliability, and developer-experience improvements with a focus on business value and long-term maintainability. Key outcomes include a memory-leak fix in the LDPC path, modernization of the build and CI/CD pipelines, typing and code-quality improvements, and enhanced development tooling. These efforts reduce runtime risk, accelerate release cycles, and streamline maintenance for future feature work. Technologies and practices demonstrated include package dependency management, uv_build integration, mypy/ParamSpec-based typing, Python LSP tooling, and CI/CD workflow improvements.
November 2025
4 Commits • 3 Features
Nov 1, 2025November 2025 monthly summary for Infleqtion/qLDPC focused on robustness, maintainability, and developer tooling. Key features delivered include introducing an AbstractCode.is_equiv_to method for quantum code equivalence with accompanying tests, and enhancing documentation with external resource links and clarified usage of decoders. Additionally, deprecation warnings were standardized with proper stack levels to improve debugging and long-term maintainability. These efforts reduce regression risk, improve test coverage, and accelerate onboarding for contributors. Technologies and skills demonstrated include Python code quality, unit testing, and documentation practices that emphasize clear usage and maintainable code.
4 Commits • 3 Features
Nov 1, 2025November 2025 monthly summary for Infleqtion/qLDPC focused on robustness, maintainability, and developer tooling. Key features delivered include introducing an AbstractCode.is_equiv_to method for quantum code equivalence with accompanying tests, and enhancing documentation with external resource links and clarified usage of decoders. Additionally, deprecation warnings were standardized with proper stack levels to improve debugging and long-term maintainability. These efforts reduce regression risk, improve test coverage, and accelerate onboarding for contributors. Technologies and skills demonstrated include Python code quality, unit testing, and documentation practices that emphasize clear usage and maintainable code.
November 2025
October 2025
35 Commits • 10 Features
Oct 1, 2025October 2025 monthly summary for Infleqtion/qLDPC: Delivered meaningful business value and technical improvements across code quality, algorithmic performance, and API usability. Highlights include MAGMA-based automorphism group option, cache improvements leading to faster computations, code parsing/retrieval enhancements from qecdb.org, breaking API changes plus Human API; version bumps; tests and docs improvements. These changes collectively improve reliability, speed, and developer experience, broadening Python ecosystem compatibility and enabling more scalable workflow automation.
October 2025
35 Commits • 10 Features
Oct 1, 2025October 2025 monthly summary for Infleqtion/qLDPC: Delivered meaningful business value and technical improvements across code quality, algorithmic performance, and API usability. Highlights include MAGMA-based automorphism group option, cache improvements leading to faster computations, code parsing/retrieval enhancements from qecdb.org, breaking API changes plus Human API; version bumps; tests and docs improvements. These changes collectively improve reliability, speed, and developer experience, broadening Python ecosystem compatibility and enabling more scalable workflow automation.
September 2025
145 Commits • 40 Features
Sep 1, 2025September 2025 performance summary for Infleqtion/qLDPC: Delivered substantive decoding framework enhancements, stabilized initialization, and a broad set of robustness, documentation, and performance improvements. These changes collectively accelerate reliable quantum error-correction decoding, improve maintainability, and provide clearer versioning and business-facing documentation.
145 Commits • 40 Features
Sep 1, 2025September 2025 performance summary for Infleqtion/qLDPC: Delivered substantive decoding framework enhancements, stabilized initialization, and a broad set of robustness, documentation, and performance improvements. These changes collectively accelerate reliable quantum error-correction decoding, improve maintainability, and provide clearer versioning and business-facing documentation.
September 2025
August 2025
98 Commits • 37 Features
Aug 1, 2025August 2025 focused on architectural refactors, reliability, and developer experience to scale the qLDPC stack, improve code quality, and accelerate delivery of new capabilities. The month delivered a major circuit module restructuring, expanded testing and documentation improvements, and proactive dev tooling and observability enhancements, while advancing decoding and distance calculation capabilities for stronger error correction and broader platform support.
August 2025
98 Commits • 37 Features
Aug 1, 2025August 2025 focused on architectural refactors, reliability, and developer experience to scale the qLDPC stack, improve code quality, and accelerate delivery of new capabilities. The month delivered a major circuit module restructuring, expanded testing and documentation improvements, and proactive dev tooling and observability enhancements, while advancing decoding and distance calculation capabilities for stronger error correction and broader platform support.
July 2025
2 Commits
Jul 1, 2025July 2025: Focused on CI stability and correctness improvements for Infleqtion/qLDPC, delivering tangible business value through reduced test flakiness and robust Pauli enum handling. Code changes include CI timeout adjustment and identity-based Pauli comparisons to increase reliability and correctness.
2 Commits
Jul 1, 2025July 2025: Focused on CI stability and correctness improvements for Infleqtion/qLDPC, delivering tangible business value through reduced test flakiness and robust Pauli enum handling. Code changes include CI timeout adjustment and identity-based Pauli comparisons to increase reliability and correctness.
July 2025
June 2025
49 Commits • 12 Features
Jun 1, 2025June 2025 achievements across Infleqtion/qLDPC: Delivered algebraic API enhancements, core functionality fixes, and performance optimizations; expanded API surface with asarray; improved test reliability and documentation; and refined code quality through cleanup and refactoring. These efforts increased correctness of group operations, reduced runtime for larger matrices, and improved accuracy of result reporting for downstream users.
June 2025
49 Commits • 12 Features
Jun 1, 2025June 2025 achievements across Infleqtion/qLDPC: Delivered algebraic API enhancements, core functionality fixes, and performance optimizations; expanded API surface with asarray; improved test reliability and documentation; and refined code quality through cleanup and refactoring. These efforts increased correctness of group operations, reduced runtime for larger matrices, and improved accuracy of result reporting for downstream users.
May 2025
17 Commits • 4 Features
May 1, 2025May 2025 monthly summary for Infleqtion/qLDPC: Delivered foundational improvements to the qLDPC algebra library, enhanced CI/CD feedback and triggering, updated project branding/docs, and simplified tests/examples to improve reproducibility. These changes drive robustness, usability, and maintainability, enabling faster development cycles and clearer fault diagnosis in CI.
17 Commits • 4 Features
May 1, 2025May 2025 monthly summary for Infleqtion/qLDPC: Delivered foundational improvements to the qLDPC algebra library, enhanced CI/CD feedback and triggering, updated project branding/docs, and simplified tests/examples to improve reproducibility. These changes drive robustness, usability, and maintainability, enabling faster development cycles and clearer fault diagnosis in CI.
May 2025
April 2025
16 Commits • 4 Features
Apr 1, 20252025-04 monthly summary for Infleqtion/qLDPC: Key features delivered, major fixes, impact, and skills demonstrated. Focused on delivering flexibility and correctness with SimplexCode(2), configurable IcebergCode logicals, comprehensive documentation, and enhanced plotting in examples. This month also improved test coverage and developer experience.
April 2025
16 Commits • 4 Features
Apr 1, 20252025-04 monthly summary for Infleqtion/qLDPC: Key features delivered, major fixes, impact, and skills demonstrated. Focused on delivering flexibility and correctness with SimplexCode(2), configurable IcebergCode logicals, comprehensive documentation, and enhanced plotting in examples. This month also improved test coverage and developer experience.
March 2025
31 Commits • 10 Features
Mar 1, 2025March 2025 monthly summary for Infleqtion/qLDPC focused on delivering core features, improving reliability, and enhancing code quality across the module. Key features were implemented, significant tests added, startup/dimension handling stabilized, and documentation improved to support maintenance and onboarding. Delivered items span reconstruction logic, startup initialization, and improved code infrastructure, with targeted fixes to ensure correctness and robustness.
31 Commits • 10 Features
Mar 1, 2025March 2025 monthly summary for Infleqtion/qLDPC focused on delivering core features, improving reliability, and enhancing code quality across the module. Key features were implemented, significant tests added, startup/dimension handling stabilized, and documentation improved to support maintenance and onboarding. Delivered items span reconstruction logic, startup initialization, and improved code infrastructure, with targeted fixes to ensure correctness and robustness.
March 2025
February 2025
73 Commits • 35 Features
Feb 1, 2025February 2025 highlights for Infleqtion/qLDPC focused on delivering clearer data visualization, API enhancements, and codebase clarity, while maintaining stability through targeted fixes and documentation improvements.
February 2025
73 Commits • 35 Features
Feb 1, 2025February 2025 highlights for Infleqtion/qLDPC focused on delivering clearer data visualization, API enhancements, and codebase clarity, while maintaining stability through targeted fixes and documentation improvements.
January 2025
165 Commits • 62 Features
Jan 1, 2025January 2025 (Infleqtion/qLDPC) monthly summary: - Key features delivered: • CSSCode.stack now returns a CSSCode, improving type safety and downstream composability (commit bc529977abb344dc46a82b752b6db55b3689e9e2). • Expanded gate support and code manipulation capabilities: added identity gate translation to circuit->tableau, enabling complete translation pipelines; added conjugation support for logicals when conjugating stabilizers; introduced option to recompute logical operators and updated/logical states during deform; and set logical operators for the Steane code. • Documentation and readability enhancements: README updates for QuditCode.get_logical_ops, clarified docstrings, and broader documentation improvements. • Performance, correctness, and scalability improvements: major graph construction speedups and precomputation (placement matrix), ensuring every node is placed; improved graph matching with early stopping, guaranteed use of bipartite maximum matching, and identification of perfect matchings using linear_sum_assignment; broader typing improvements and code reliability improvements. • Reproducibility and test infrastructure: fully reproducible results aligned with arXiv:2404.18809, plus test infrastructure changes to cache pytest runs and related configurations. • Quality and maintenance: code quality, readability, and tooling improvements including SciPy-based block diagonal construction where applicable, and various refactors to improve maintainability. - Major bugs fixed: • Fixed an old error and a sign error; resolved data qubits mapping bugs affecting circuit configuration; addressed missing parts of the search space; fixed sector-related issues and related edge-case bugs; various typo and robustness fixes in tests and coverage. - Overall impact and accomplishments: • Substantial enhancement of feature coverage, reliability, and performance, enabling faster experimentation and more robust code paths; improved reproducibility, documentation, and testing; and stronger maintainability through targeted refactors and typing improvements. - Technologies, skills demonstrated: • Python, typing, SciPy (block_diag, linear_sum_assignment), NumPy; performance optimization (vectorization, precomputation, caching); code quality, documentation, and testing discipline; packaging and tooling updates.
165 Commits • 62 Features
Jan 1, 2025January 2025 (Infleqtion/qLDPC) monthly summary: - Key features delivered: • CSSCode.stack now returns a CSSCode, improving type safety and downstream composability (commit bc529977abb344dc46a82b752b6db55b3689e9e2). • Expanded gate support and code manipulation capabilities: added identity gate translation to circuit->tableau, enabling complete translation pipelines; added conjugation support for logicals when conjugating stabilizers; introduced option to recompute logical operators and updated/logical states during deform; and set logical operators for the Steane code. • Documentation and readability enhancements: README updates for QuditCode.get_logical_ops, clarified docstrings, and broader documentation improvements. • Performance, correctness, and scalability improvements: major graph construction speedups and precomputation (placement matrix), ensuring every node is placed; improved graph matching with early stopping, guaranteed use of bipartite maximum matching, and identification of perfect matchings using linear_sum_assignment; broader typing improvements and code reliability improvements. • Reproducibility and test infrastructure: fully reproducible results aligned with arXiv:2404.18809, plus test infrastructure changes to cache pytest runs and related configurations. • Quality and maintenance: code quality, readability, and tooling improvements including SciPy-based block diagonal construction where applicable, and various refactors to improve maintainability. - Major bugs fixed: • Fixed an old error and a sign error; resolved data qubits mapping bugs affecting circuit configuration; addressed missing parts of the search space; fixed sector-related issues and related edge-case bugs; various typo and robustness fixes in tests and coverage. - Overall impact and accomplishments: • Substantial enhancement of feature coverage, reliability, and performance, enabling faster experimentation and more robust code paths; improved reproducibility, documentation, and testing; and stronger maintainability through targeted refactors and typing improvements. - Technologies, skills demonstrated: • Python, typing, SciPy (block_diag, linear_sum_assignment), NumPy; performance optimization (vectorization, precomputation, caching); code quality, documentation, and testing discipline; packaging and tooling updates.
January 2025
December 2024
18 Commits • 3 Features
Dec 1, 2024December 2024 — Infleqtion/qLDPC: Focused on strengthening test reliability, code quality, and development tooling to accelerate delivery and reduce post-release issues. Delivered three integrated workstreams: testing infrastructure enhancements and test-suite optimization, code quality improvements and internal refactors, and documentation/packaging/dependency management updates. A targeted test-coverage fix in abstract.py reduced flaky outcomes and improved reliability of the test suite. Together these efforts lowered CI time, improved maintainability, and set a strong foundation for faster iterations and safer releases.
December 2024
18 Commits • 3 Features
Dec 1, 2024December 2024 — Infleqtion/qLDPC: Focused on strengthening test reliability, code quality, and development tooling to accelerate delivery and reduce post-release issues. Delivered three integrated workstreams: testing infrastructure enhancements and test-suite optimization, code quality improvements and internal refactors, and documentation/packaging/dependency management updates. A targeted test-coverage fix in abstract.py reduced flaky outcomes and improved reliability of the test suite. Together these efforts lowered CI time, improved maintainability, and set a strong foundation for faster iterations and safer releases.
November 2024
38 Commits • 14 Features
Nov 1, 2024Month 2024-11 — Infleqtion/qLDPC development delivered substantive feature work and stability improvements, aligning with business value of more reliable quantum code paths, better deployment readiness, and increased test coverage. The month focused on state preparation, encoding robustness, and infrastructure improvements to reduce regression risk, accelerate onboarding, and enable more trustworthy simulations.
38 Commits • 14 Features
Nov 1, 2024Month 2024-11 — Infleqtion/qLDPC development delivered substantive feature work and stability improvements, aligning with business value of more reliable quantum code paths, better deployment readiness, and increased test coverage. The month focused on state preparation, encoding robustness, and infrastructure improvements to reduce regression risk, accelerate onboarding, and enable more trustworthy simulations.
November 2024
Activity
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Quality Metrics
Correctness90.6%
Maintainability91.4%
Architecture87.4%
Performance84.4%
AI Usage20.6%
Skills & Technologies
Programming Languages
CC++CythonJupyter NotebookMarkdownNumPyNumpyPythonRSTStim
Technical Skills
API DesignAPI IntegrationAbstract AlgebraAbstract Base ClassesAlgebraic Coding TheoryAlgebraic GeometryAlgebraic StructuresAlgorithm DesignAlgorithm DevelopmentAlgorithm ImplementationAlgorithm ImprovementAlgorithm OptimizationAlgorithm RefactoringAlgorithm RefinementAlgorithm Simplification
Repositories Contributed To
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