Qubit

Quantum Computing

A computing paradigm that uses quantum mechanical phenomena like superposition and entanglement to process information exponentially faster for certain problems.

Superposition

A quantum mechanical property where a qubit exists in multiple states simultaneously until measured.

Quantum Entanglement

A phenomenon where two or more qubits become correlated such that the quantum state of one instantly influences the other regardless of distance.

Quantum Gate

A basic quantum circuit operation that manipulates one or more qubits, analogous to logic gates in classical computing.

Quantum Circuit

A sequence of quantum gates applied to qubits to perform a quantum computation.

Quantum Error Correction

Techniques for protecting quantum information from errors due to decoherence and other quantum noise sources.

Decoherence

The loss of quantum coherence when a quantum system interacts with its environment, causing errors in computation.

Quantum Noise

Random fluctuations in quantum systems that introduce errors and limit the accuracy of quantum computations.

NISQ

Noisy Intermediate-Scale Quantum — the current era of quantum computing with limited, error-prone qubits.

Fault-Tolerant Quantum Computing

Quantum computing systems that can continue to operate correctly even in the presence of errors.

Quantum Teleportation

The transfer of quantum states between qubits using entanglement and classical communication.

Photonic Quantum Computing

Quantum computing using photons as qubits, manipulated through optical components.

Neural network architectures designed to run on quantum hardware, potentially offering computational advantages.

Google's open-source framework for writing, manipulating, and running quantum circuits on quantum hardware and simulators.

A qubit implementation using superconducting circuits that exhibit quantum behaviour at extremely low temperatures.

A form of quantum computing based on the adiabatic theorem, gradually evolving a system from an initial to a problem-encoding Hamiltonian.

An algorithm designed to run on a quantum computer, potentially solving certain problems faster than classical algorithms.

The ability of quantum computers to evaluate multiple computational paths simultaneously through superposition.

A quantum algorithm for integer factorisation that runs exponentially faster than the best known classical algorithms.

Cryptographic algorithms designed to be secure against both classical and quantum computer attacks.