Counterfactual control and quantum contextuality in multi-mode interferometers

被引：0

作者：

Hofmann, Holger F. ^{[1
]}

Hance, Jonte R. ^{[2
]}

Matsushita, Tomonori ^{[1
]}

Jia, Ming ^{[1
]}

Iinuma, Masataka ^{[1
]}

机构：

[1] Hiroshima Univ, Grad Sch Adv Sci & Engn, Kagamiyama 1-3-1, Higashihiroshima 7398530, Japan

[2] Newcastle Univ, Sch Comp, 1 Sci Sq, Newcastle Upon Tyne NE4 5TG, Tyne & Wear, England

来源：

QUANTUM COMMUNICATIONS AND QUANTUM IMAGING XXII | 2024年 / 13148卷

基金：

英国工程与自然科学研究理事会;

关键词：

quantum contextuality; counterfactual quantum computation; quantum interference; wave-particle dualism; fundamental properties of the photon; quantum measurement; quantum dynamics; which-path problem;

D O I：

10.1117/12.3027375

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

As shown in previous work, quantum contextuality can be represented by interference effects in a three-path interferometer. A Hardy-like paradox is obtained when the absence of photons in two internal paths seems to contradict the presence of photons in a specific input port. Here, we consider the effects of counterfactual control on this scenario by analyzing the changes to the paths through the interferometer when the seemingly impossible input path is blocked. The effects on photons that never interact with the absorber in the blocked path reveals a characteristic signature of quantum contextuality that may help to explain why quantum interference is incompatible with measurement independent realities.

引用

页数：6

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