What if a quantum bit could keep its information safe in one part, and use a different part to talk to the rest of a quantum computer? MIT researchers have designed a qubit with an extra arm, and that small change may help solve one of quantum computing's biggest engineering problems.
data mode 与 arm mode 如何分工。quarton coupler 为什么重要。qubit：量子比特quantum state：量子态coherence：量子相干decoherence：退相干，量子信息逐渐丢失的过程fault-tolerant：容错的architecture：架构interact：相互作用resonator：谐振器coupler：耦合器readout：读出，读取计算结果The extra arm does not make quantum computing practical by itself.The extra arm does not make quantum computing practical：额外的手臂本身不能让量子计算变得实用。by itself 表示“单靠它自己”。这句话提醒听众：新架构提供的是一种分配工作的办法，不是已经完成的量子计算机。This story was produced automatically by a channel. One sentence is all it takes for Neodrop to keep producing for you.