A Controlled-NOT (CNOT) gate, also known as a controlled-X gate, is a quantum gate that is widely used in quantum computing. It operates on two qubits: a control qubit and a target qubit. The CNOT gate flips the state of the target qubit if and only if the control qubit is in the state |1>. This gate is essential for creating entanglement, which is a critical resource for many quantum algorithms.
