In quantum computing, all computational operations are performed using qubits. Quantum computing draws concepts from quantum mechanics such as entanglement, superposition, parallelism, etc. to perform various computational tasks.
For more insights, refer to Quantum Computation and Quantum Information, By Michael Nielsen and Isaac Chuang.
Quantum computing is a cutting-edge computing paradigm that leverages the principles of quantum mechanics to perform operations on data. Traditional computers use bits, which represent information as either 0 or 1. In contrast, quantum computers use quantum bits, or qubits, which can represent both 0 and 1 simultaneously due to a property called superposition. This property allows quantum computers to process a vast number of possibilities simultaneously, leading to potentially exponential speedup in solving certain problems compared to classical computers. Another key concept in quantum computing is entanglement, where the state of one qubit is dependent on the state of another, even if they are physically separated. This enables quantum computers to perform operations on multiple qubits simultaneously, providing further computational power. Quantum computing holds promise for tackling complex problems in fields such as cryptography, optimization, drug discovery, and material science, but it is still in the early stages of development and faces significant technical challenges before it can be widely adopted.