Tagged: quantum-computing
9 entries
- Bloch sphereGlossary · The Bloch sphere is the geometric representation of a single qubit's pure state as a point on the surface of a unit sphere in three dimensions.
- DecoherenceGlossary · Decoherence is the loss of a quantum system's coherent state through interaction with its environment, the reason quantum error correction is needed.
- EntanglementGlossary · Entanglement is a quantum correlation linking two or more qubits so that their states cannot be described independently of one another.
- Logical qubitGlossary · A logical qubit is an error-corrected qubit encoded across many physical qubits, the unit in which cryptographically relevant quantum computers are sized.
- Quantum annealerGlossary · A quantum annealer is a special-purpose quantum device that finds low-energy configurations of a problem through the process of quantum annealing.
- QubitGlossary · A qubit is the basic unit of quantum information, a two-level quantum system that can hold superpositions and become entangled with other qubits.
- Richard FeynmanQuantum physics · Richard Feynman (1918 to 1988) co-developed quantum electrodynamics and the path integral, and in 1981 proposed simulating physics with quantum computers.
- SuperpositionGlossary · Superposition is the quantum property by which a qubit holds a weighted combination of 0 and 1 until measurement collapses it to one outcome.
- Surface codeGlossary · The surface code is the leading quantum error-correcting code, encoding one logical qubit in a two-dimensional grid of physical qubits.