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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210
11
章 量子スーパーサンプリング
11.3
ハンズオン：位相エンコーディングされた画像を計算する
スーパーサンプリングに
QPU
を用いるためには、
QPU
レジスタで画像を表現する方法（ただし、本
格的なレイトレーシングよりは取り扱いが簡単な方法）が必要です。
QPU
レジスタでピクセル画像を表現する方法は、さまざまなものがあります。この章の最後に、量
子画像処理の文献で紹介されているアプローチをまとめるので参照してください。ここでは位相エン
コーディングと呼ばれる表現を使用します。位相エンコーディングでは、ピクセルの値は重ね合わせの
位相で表現します。この方法を用いると、画像情報と
6
章で紹介した振幅増幅の手法を共用できると
いう重要な性質があります。
図 11-3
＊
1
＊
1
「 イ メ ー ジ の 裏 切 り（
La trahison des images
）」の 中 で 、 画 家 ル ネ ・ マ グ リ ッ ト （
René Magritte
）は 、 パ イ プ の 画 像 が パ
イプではないことを強調している。同様に、この位相エンコーディングされたハエの画像は、実際のハエの完全な量
子状態ではない。
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