Optimal discrimination between real and complex quantum theories

被引：9
|
作者：
Bednorz, Adam [1 ]
Batle, Josep [2 ]
机构：
[1] Univ Warsaw, Fac Phys, Ul Pasteura 5, PL-02093 Warsaw, Poland
[2] CRISP Ctr Recerca Independent Sa Pobla, C Albeniz 12, Sa Pobla 07420, Balearic Island, Spain
来源：
PHYSICAL REVIEW A | 2022年 / 106卷 / 04期
关键词：
MECHANICS;
D O I：
10.1103/PhysRevA.106.042207
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We find the minimal number of settings to test quantum theory based on real numbers, assuming separability of the sources, modifying the recent proposal [M.-O. Renou et al., Nature (London) 600, 625 (2021)]. The test needs only three settings for observers A and C, but the ratio of complex to real maximum is smaller than in the existing proposal. We also found that two settings and two outcomes for both observers are insufficient.
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页数：6
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