Limitations on post-processing assisted quantum programming

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• 作者：Teiko Heinosaari ; Takayuki Miyadera ; Mikko Tukiainen
• 关键词：Quantum measurement ; Quantum multimeter ; Quantum programming ; Data post ; processing ; Joint measurement
• 刊名：Quantum Information Processing
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：16
• 期：3
• 全文大小：
• 刊物类别：Physics and Astronomy
• 刊物主题：Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics;
• 出版者：Springer US
• ISSN：1573-1332
• 卷排序：16

文摘

A quantum multimeter is a programmable device that can implement measurements of different observables depending on the programming quantum state inserted into it. The advantage of this arrangement over a single-purpose device is in its versatility: one can realize various measurements simply by changing the programming state. The classical manipulation of measurement output data is known as post-processing. In this work we study the post-processing assisted quantum programming, which is a protocol where quantum programming and classical post-processing are combined. We provide examples showing that these two processes combined can be more efficient than either of them used separately. Furthermore, we derive an inequality relating the programming resources to their corresponding programmed observables, thereby enabling us to study the limitations on post-processing assisted quantum programming.