kvanteinformation
Kvanteinformation, or quantum information, is a field that studies information processing with quantum systems. It uses quantum bits, or qubits, which can inhabit superpositions and become entangled, enabling processing and transmission in ways not possible classically. It combines quantum physics and information theory to understand the limits and capabilities of information processing.
The state of a qubit is a unit vector in a two-dimensional Hilbert space, a|0> + b|1>, with
Key phenomena include superposition, which allows interference-based processing, and entanglement, which creates correlations that have no
Applications span computation, communication, and sensing. Quantum algorithms such as Shor’s factoring and Grover’s search suggest
Physical implementations include superconducting qubits, trapped ions, photonic qubits, and solid-state spins. The field is currently
From a theoretical perspective, kvanteinformation connects quantum physics with information theory through concepts such as von