August 2020
Beginner to intermediate
332 pages
8h 16m
Japanese
book
動かして学ぶ量子コンピュータプログラミング ―シミュレータとサンプルコードで理解する基本アルゴリズム
by Eric R. Johnston, Nic Harrigan, Mercedes Gimeno-Segovia, 北野 章, 丸山 耕司
Content preview from 動かして学ぶ量子コンピュータプログラミング ―シミュレータとサンプルコードで理解する基本アルゴリズム
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244
12
章 ショアの素因数分解アルゴリズム
作業レジスタ
図 12-10
a
x
QPU
プログラミングでは、条件付きゲートは
if/then
演算の代わりになるので非常に便利
です。これは、条件のとりうるすべての値を一度に効率よく評価できるからです。
ステップ
4
：条件付きの
4
の乗算
精度レジスタの中で次に重みが大きいキュビットが
1
であれば、
x
のバイナリ値が作業レジスタにお
いて
2
の乗算が新たに
2
回必要であるという意味になります。したがって、図 12-11に示すように、
2
つ
の キ ュ ビ ッ ト（
2
つの
rollLeft()
演算）によるビットのシフトを、精度レジスタの
0x2
キュビットの値
に関する条件を付けて実行します。
12.3
整数
15
の素因数分解を
1
ステップずつ行う
245
作業レジスタ
精度レジスタ
図 12-11
この段階では、作業レジスタに
a
x
の値が入っています。このとき、任意の
x
の 値 が 精 度 レ ジ ス タ の（
1
番目と
2
番目の）キュビットにエンコードされています。この例では、精度レジスタは
x
がとりうる値に
ついての均一な重ね合わせになってい ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.