A structured knowledge base of quantum computing. Explore qubits, gates, algorithms, error correction, and more — all in one place.
Basic unit of quantum information.
A qubit can exist in multiple states at once.
Strong correlation between qubits beyond classical physics.
Geometric representation of a single qubit state.
Collapses quantum states into classical results.
Loss of quantum information due to environment.
Operations that transform qubit states.
Set of fundamental gates: X, Y, Z.
Creates superposition from basis states.
Two-qubit gate used for entanglement.
Adds a relative phase to qubit states.
Three-qubit universal gate for classical logic in quantum circuits.
Procedures leveraging quantum phenomena for speedup.
First quantum algorithm showing advantage.
Efficient factoring of large numbers.
Quadratic speedup for unstructured search.
Transforms quantum states to frequency domain.
Hybrid classical-quantum algorithms for optimization.
Simulating physical systems with quantum computers.
Applying quantum computing to ML tasks.
Current stage of quantum computing: noisy, small devices.
When a quantum computer outperforms classical computers.
A maximally entangled two-qubit state.
Transfer of qubit state using entanglement.
Secure communication using quantum principles.
Protocol to securely share encryption keys.
True random number generation using quantum phenomena.