What question did this study set out to answer?

The central aim is to validate the QCOS framework for optimizing quantum circuits in NISQ environments.

February 2, 2026Open Access

QCOS: Quantum Circuit Optimization System – Scientific Validation and Benchmarking Report Softquantus

Key Points

The central aim is to validate the QCOS framework for optimizing quantum circuits in NISQ environments.
Conducted empirical testing of QCOS using the H₂ VQE benchmark.
Performed Hamiltonian spectral equivalence analysis between Qiskit Nature and OpenFermion.
Executed shot-noise scaling analysis to understand the system's robustness.
Implemented multi-start optimization studies to enhance efficiency.
Developed a comprehensive unit-test suite for thorough validation.
Demonstrated rigorous correctness of the QCOS framework.
Showed strong statistical robustness through various benchmarks.
Confirmed effective optimization behavior in variational quantum algorithms.

Abstract

This record presents the scientific validation of QCOS (Quantum Circuit Optimization System), a reproducible and test-driven orchestration framework for variational quantum algorithms in the NISQ era. The document provides rigorous empirical evidence of correctness, statistical robustness, and optimization behavior using the H₂ VQE benchmark. Validation includes full Hamiltonian spectral equivalence (Qiskit Nature vs OpenFermion), shot-noise scaling analysis, multi-start optimization studies, and a comprehensive unit-test suite. This white paper is intended as a technical reference for researchers, industry partners, and decision-makers evaluating QCOS as a viable quantum software system rather than a performance-claim-driven.

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