Quantum Glossary
Key terms explained plainly — no physics degree required.
Qubit
The quantum equivalent of a classical bit. Unlike a classical bit (0 or 1), a qubit can be in a superposition — representing 0, 1, or both simultaneously until measured.
Superposition
A qubit in superposition exists in multiple states at once. This allows quantum computers to explore many solutions simultaneously, unlike classical computers that check solutions one at a time.
Entanglement
When two qubits are entangled, the state of one instantly influences the other — even at distance. This is a key resource for quantum algorithms.
QUBO
Quadratic Unconstrained Binary Optimization. A problem formulation where you find the binary (0/1) assignment of variables that minimises a quadratic objective function. Many real-world optimisation problems (like supplier selection) can be mapped to QUBO.
Simulated Annealing
A classical algorithm inspired by the physical process of heating and slowly cooling material. It explores solutions probabilistically, escaping local optima. Often used as a quantum-inspired technique.
Quantum Advantage
When a quantum computer solves a problem faster or better than the best known classical algorithm. Not yet proven for most business problems — always verify claims.
D-Wave
A company making quantum annealers — specialised hardware for QUBO problems. TechnoPkg simulates this approach without real hardware.
Quantum-Inspired
Classical algorithms that mimic quantum approaches (like QUBO or annealing) to solve optimisation problems. No quantum hardware needed. This is what TechnoPkg uses.