考虑函数$f:x\to f(x),x,f(x)\in{0,1}$,则计算过程为:$U_f|x,0\rang=|x,f(x)\rang$ 由于结果仅为0或1,另外一种描述为:$P_f|x\rang=(-1)^{f(x)}|x\rang$ 两者的关系: $$U_f(|x\rang \otimes |-\rang)=(P_f\otimes I)(|x\rang \otimes |-\rang)$$ 如何构造$U_f...
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（原文）Quantum (量子) computers have been on my mind a lot lately. A friend has been sending me articles on how quantum computers might help solve some of the biggest challenges we face as humans. I’ve also had exchanges with two quantum-computing experts. One is computer scientist Chris...
Conventional computers store data in a binary series of 0s and 1s. Instead, a quantum computer would store information as 0,1 or a quantum superposition of the two. These 'quantum bits', or qubits, would allow much faster calculations. While three conventional bits could represent any number...
Oxford Ionics are world-leading innovators, creating the unique technologies which will bring Quantum Computing from the theoretical to the indispensable.
IBM Quantum is working to bring useful quantum computing to the world and make the world quantum safe.
Quantencomputer machen heute unlösbare Aufgaben lösbar. Sie eröffnen den Zugang zu einer bisher unerreichbaren Rechenleistung. Die kleinste Informationseinheit in der klassischen Computerwelt ist ein Bit. Es kann die zwei Werte oder Zustände 0 oder 1 annehmen. Beim Quantencomputing ist...
Quantum computing is an emerging technology that uses phenomena occurring on an atomic level to resolve complex problems that are beyond the realm of classical...
IBM Quantum is working to bring useful quantum computing to the world and make the world quantum safe.