QCore—Simplified Quantum Computing: with Localized Richardson Subspace (LRS), TWA and Falsifiable Testing

Readers are right to be weary of quantum-computing promises. This work takes a different path: QCore executes entirely inside a Localized Richardson Subspace (LRS) capsule, with fixed acceptance lines and engine-invariant falsifiers. No entanglement corridor, no global syndrome traffic—just local, testable operations you can replay and audit. This paper presents QCore, a corridor-free quantum computing architecture that executes entirely inside a Localized Richardson Subspace (LRS) capsule. We combine fixed acceptance lines (F/W/R), engine-invariant falsifiers (odd/even hygiene, flip-only Z, disable-L, no-backflow), and a lightweight Truncated Wigner Approximation (TWA) runner to keep production inside a certified window without loosening thresholds. Hardware converges on waveguide metasurfaces (flatband plateaus) and atomic-scale sensors for change-point triggers, while tile/pod scaling with hot spares preserves throughput (“double means dump” → instant failover). The stack is room-temperature, energy-efficient, and replayable via an explicit ledger (tokens, S, B, Delta). We include mapping steps, acceptance lines, and run cards so others can reproduce, falsify, or extend the results.