Qubits are the basic units of quantum information, analogous to classical bits but with the unique ability to exist in multiple states simultaneously. This superposition allows qubits to represent both 0 and 1 at the same time, enabling quantum computers to process vast amounts of information more efficiently than classical computers. Qubits also exhibit entanglement, where the state of one qubit can depend on the state of another, making them essential for quantum algorithms and real quantum hardware operations.
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