In other words, in classical computing, the reduction of size leads to the prominence of quantum effects and affects the development of classical computing; The quantum bit that uses the quantum effect brings a new computing mode and can realize the acceleration effect.
Classical bits can only be in one of the two states of 0 or 1, while quantum bits exist in the form of 0 and 1 superposition, and can deal with the calculation of large-scale data through quantum superposition and entanglement. The superposition state means both 0 and 1. The evolution of qubit state corresponds to the rotation of state vector on Bloch sphere.Theoretically, a quantum computer with hundreds of qubits can process more calculations at the same time than the number of atoms in the known universe.
Typical scheme:
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