Quantum devices is an important step forward to the quantum world, general quantum computer get practical application is a sign of age, that is, what quantum technology development to the stage, and what are the key point to break through, quantum technologies will be how to refactor mercilessly economic life and the liberation of the human mind,,,,,, this is a quantum computer, this is IBM launched this year, though a bit stupid, but, you to send to tianjin to Beijing to everywhere, like a machine, is a larger machine, so it only 20 memory, is quantum bit, quantum bits is 20, and then, it can use the time is very short (fishing yu shenjeer who can control a quantum bit who can get the Nobel Prize), so, the quantum computer, we are not really available quantum computer, it, application scope is narrow, have no use, it is not clear, because, it features more bad (yu shenjeer fishing has one thousand quantum computer can 1 second password, block chain is the clown), however, it is indeed a genuine quantum computer, why, it is all the rules of quantum mechanics, we distinguish between the classical and quantum, see what it obey laws, electronic computer to obey the classical physics, so we call classical computers, however, that really is all-sided, quantum algorithms, quantum control, what all depend on the quantum, so, it is indeed a quantum computer, but its use is not big, it is very important of human to the quantum world forward one step,,,
但是,量子时代还没来,那么,一旦要做出来呢,量子计算机有什么优点,我们就看电子计算机,它的特点叫串行运算,什么叫串行运算呢,就是说,它的数据库里,每一个时间就存一个数据,它是确定的,然后呢,你要解决问题就要操控它,你操控一次呢,就把这个数据变成另一个数据,再操控一次,变成另一个数据,因此,把你的程序算完啦,就是把它算出来了,虽然再快的计算机也是这么做的,这样算呢,有快有慢,但是,最后都是一步一步往下算,这叫串行运行的模式,量子计算机,它的特点来啦,它是概率的,它不确定,所以,一个存储器会不确定,就是0和1,它把0和1同时包在里面了,就是它的不确定性概率性,使得量子存储器一个时间,可以同时存多少个数据呢,2的n次方的数据,n是什么呢,n是你的量子存储器的速度,所以,你操控一次呢,就可以把这么多的2的n次方数据变成另外的新的2的n次方数据,所以,每一步操作呢,这是并行运算,这是艰难的,它量子性决定它的特点,量子计算机叫并行运算,并行运算处理数据能力就极强,多强呢,我们大家都记得这个故事,古代,印度有一个传说,说国王想奖赏他的宰相,因为他的宰相发明了国际象棋,国王说,你想需要什么奖赏,宰相说,把那个棋盘拿出来,64格的棋盘,他说,我要第一格放1粒麦子,第二格放2粒,第三格放4粒,以后每一格都是前面的一倍,你就这么放满了就行啦,国王看着一听,这不很简单吗,这个能满足你,国王就开始请人放麦子,放了一半,全国麦子一袋一袋来,说这个问题可不是简单,这就是一个指数增长的问题,指数增长,它64,好像很小,但按指数增长不得了,你要把这个棋盘的麦子放满,要多少,整个地球500年生产的麦子才够,你看,指数上升,力量有多强,现在,我们的量子计算机,它的指数增长的速度来超越电子计算机,所以,你想象,真的量子计算机做出来啦,那它的能力有多强,它的速度有多快,难以想象

CodePudding user response:

Their relationship is similar to the physics class of series and parallel, this understandable