{"id": "card_floor_quantum_computing", "kind": "note", "title": "Quantum computing — qubits and superposition", "body": "A qubit is a superposition of 0 and 1, so n qubits hold 2^n amplitudes; the power is interference (Grover, Shor). Pillars rest on quantum mechanics (superposition, entanglement) and computer science (computation). The stick (stick_quantum_computing_qubits_and_superposition) seals the 10-qubit state space and Grover's speedup (tools/seed_quantum_computing.py).", "source": {"label": "Narrow Highway — qc", "url": "", "authority_tier": "engine_derived", "ref": "stick_quantum_computing_qubits_and_superposition"}, "shelf": "codex", "box": "qc", "bands": ["floor", "qc", "one map"], "subject": "Quantum computing — qubits and superposition", "connections": [{"to_card_id": "card_qc_superposition", "relationship": "has_part", "evidence": "a pillar (Superposition - the exponential state space)"}, {"to_card_id": "card_qc_computation", "relationship": "has_part", "evidence": "a pillar (Computation - interference and complexity)"}, {"to_card_id": "card_k_floor_of_discovery", "relationship": "part_of", "evidence": "quantum computation on the one map, rooted in the Floor of Discovery"}], "author": "engine", "created_at": 0.0, "updated_at": 0.0, "visibility": "public", "lifecycle_stage": "public", "volatility": "permanent", "surface": "secular", "generated": false, "call": "codex.qc", "facets": {"subject": ["floor", "one map"]}, "presentation": {"glyph": "•", "kind_label": "qc", "by": "Narrow Highway — qc", "authority": "engine_derived", "posted": "", "standing": ""}, "neighbors": [{"id": "card_qc_superposition", "title": "Superposition - the exponential state space", "relationship": "has part", "why": "a pillar (Superposition - the exponential state space)", "href": "/card/card_qc_superposition", "resolved": true}, {"id": "card_qc_computation", "title": "Computation - interference and complexity", "relationship": "has part", "why": "a pillar (Computation - interference and complexity)", "href": "/card/card_qc_computation", "resolved": true}, {"id": "card_k_floor_of_discovery", "title": "The Floor of Discovery — one floor, and by its design the fear of God", "relationship": "part of", "why": "quantum computation on the one map, rooted in the Floor of Discovery", "href": "/card/card_k_floor_of_discovery", "resolved": true}], "house": {"door": "FIND", "kind": "card", "trail": "connections", "seal": "/card/card_floor_quantum_computing", "next_step": {"do": "follow a connection: what this card rests on, and what rests on it", "door": "FIND", "tool": "card_connections", "params": {"id": "card_floor_quantum_computing"}}, "ends": "a verdict or a card · the trail · a seal · one next step"}}