Quantum computing is not binary in the same sense as classical computing. Classical computers process information using bits, which can represent either a 0 or a 1. In contrast, quantum computers use quantum bits or qubits, which can exist in a superposition of states, representing both 0 and 1 simultaneously.
The fundamental unit of information in quantum computing is the qubit, which can be in a state that is a linear combination of the basis states |0⟩ and |1⟩. This superposition allows quantum computers to perform parallel computations and explore multiple possibilities simultaneously.
In addition to superposition, quantum computing also relies on another concept called entanglement. Entanglement is a correlation between qubits that enables them to become interconnected in such a way that the state of one qubit is dependent on the state of another, even if they are physically separated. Entangled qubits can exhibit correlated behavior and can be used to perform certain computations more efficiently than classical computers.
Quantum algorithms and quantum operations manipulate qubits and their superposition and entanglement to perform computations. While the final measurement of qubits in a quantum computer will yield classical binary outcomes (0 or 1), the intermediate states during the computation can involve complex superposition and entanglement that are beyond the binary nature of classical computing.
So, while the output of a quantum computation is ultimately binary, the computational process and representation of information in quantum computing involve superposition and entanglement, making it fundamentally different from classical binary computing.