A logical qubit is an abstraction used in quantum computing to represent a single, error-corrected qubit composed of several physical qubits. The goal is to create a more reliable unit of quantum information by leveraging error correction and redundancy to counteract physical qubit errors inherent in quantum systems.

Logical Qubit

logical qubit

Quantum computing leverages the principles of quantum mechanics to process information in ways that classical computers cannot, using qubits that can exist in multiple states simultaneously. This allows for potentially exponential increases in computing power, enabling solutions to complex problems in fields like cryptography, optimization, and materials science.

quantum computing

error-corrected qubit

physical qubits

reliable unit of quantum information

Error correction is a process used to detect and correct errors in data transmission or storage, ensuring data integrity and reliability. It employs algorithms and techniques to identify discrepancies and restore the original data without needing retransmission.

error correction

Redundancy refers to the inclusion of extra components or information that are not strictly necessary, often to ensure reliability and fault tolerance. It is a crucial concept in various fields, from engineering and computing to linguistics and organizational design, where it helps prevent system failures and enhances communication clarity.

redundancy

physical qubit errors

Quantum systems are physical systems that adhere to the principles of quantum mechanics, exhibiting behaviors like superposition and entanglement that defy classical intuition. Understanding these systems is essential to the advancement of quantum computing, quantum communication, and advanced material science.

Relevant Degrees

Log in to see lessons