: The basic unit of quantum information. Unlike classical bits (
: Operations (like the Hadamard or CNOT gates) that manipulate qubit states to perform computations, forming Quantum Circuits . 2. Quantum Error-Correcting Codes (QECCs) thequantumcodes
Because quantum states are fragile, codes are used to "spread" information across multiple physical qubits to protect a single "logical" qubit. : The basic unit of quantum information