The Controlled-NOT (CNOT) gate is a fundamental two-qubit quantum logic operation that applies conditional dynamics to multi-cubit systems based on the state of a control qubit. Formally defined within quantum mechanics, this unitary operator flips the target qubit's state if and only if the control qubit occupies the basis state |1>, while leaving all other states invariant modulo 2 addition. As a primary building block for universal quantum computation, the CNOT gate enables the generation of entangled superpositions when combined with single-qubit rotations, bridging classical reversible logic gates to non-classical quantum correlations essential for information processing tasks like teleportation and dense coding.
The Controlled-NOT (CNOT) gate is a fundamental two-qubit quantum logic operation that applies conditional dynamics to multi-cubit systems based on the state of a control qubit. Formally defined with…