Anomalous weak values and the violation of a multiple-measurement Leggett-Garg inequality

被引：33

作者：

Avella, Alessio ^{[1
]}

Piacentini, Fabrizio ^{[1
]}

Borsarelli, Michelangelo ^{[2
]}

Barbieri, Marco ^{[3
]}

Gramegna, Marco ^{[1
]}

Lussana, Rudi ^{[4
]}

Villa, Federica ^{[4
]}

Tosi, Alberto ^{[4
]}

Degiovanni, Ivo Pietro ^{[1
]}

Genovese, Marco ^{[1
]}

机构：

[1] Ist Nazl Ric Metrol, Str Cacce 91, I-10135 Turin, Italy

[2] Univ Torino, Via Pietro Giuria 1, I-10125 Turin, Italy

[3] Univ Roma Tre, Dipartimento Sci, Via Vasca Navale 84, I-00146 Rome, Italy

[4] Politecn Milan, Dipartimento Elettron Informaz & Bioingn, Piazza Leonardo da Vinci 32, I-20133 Milan, Italy

来源：

PHYSICAL REVIEW A | 2017年 / 96卷 / 05期

关键词：

MACROSCOPIC REALISM; QUANTUM-MECHANICS; LIGHT; FLUX; TIME; SPIN;

D O I：

10.1103/PhysRevA.96.052123

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Quantum mechanics presents peculiar properties that, on the one hand, have been the subject of several theoretical and experimental studies about its very foundations and, on the other hand, provide tools for developing new technologies, the so-called quantum technologies. The nonclassicality pointed out by Leggett-Garg inequalities has represented, with Bell inequalities, one of the most investigated subjects. In this article we study the connection of Leggett-Garg inequalities with a new emerging field of quantum measurement, the weak values in the case of a series of sequential measurements on a single object. In detail, we perform an experimental study of the four-time-correlator Leggett-Garg test, by exploiting single and sequential weak measurements performed on heralded single photons.

引用

页数：5

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