Simulating high-accuracy nuclear motion Hamiltonians using discrete variable representation and Walsh-Hadamard QROM on fault-tolerant quantum computers

This is a published academic paper (arXiv:2510.19062v2) with zero GitHub adoption (0 stars, 3 forks likely from automated indexing or author self-promotion). The project combines known quantum computing techniques (DVR, Walsh-Hadamard QROM, quantum phase estimation) applied to a specialized domain (rovibrational molecular simulation on fault-tolerant quantum computers). The novelty lies in the specific algorithmic integration rather than breakthrough discovery. The technical contribution is sound but entirely theoretical—it describes an algorithm implementable on future fault-tolerant quantum hardware that doesn't yet exist at scale. No defensibility concerns from platform consolidation (quantum hardware vendors like IBM, Google, IonQ are decades away from commercial FT-QC; this is foundational research, not a product). Market consolidation risk is minimal because the target audience (quantum algorithm researchers, computational chemists) is niche and fragmented. The paper may influence future quantum chemistry libraries, but has zero current adoption as code. Displacement horizon is 3+ years because (1) fault-tolerant quantum computers remain experimental, (2) the algorithm requires significant engineering to implement even when hardware is ready, and (3) competing approaches (variational quantum algorithms, classical emulation) may prove more practical. The work is defensible only as intellectual property (publication date establishes priority), not as a technology moat. As an open implementation, it has no moat whatsoever—anyone with the paper can reimplement the algorithm independently.