Unifying framework for spatial and temporal quantum correlations

被引：19

作者：

Costa, Fabio ^{[1
]}

Ringbauer, Martin ^{[1
,2
,3
]}

Goggin, Michael E. ^{[1
,4
]}

White, Andrew G. ^{[1
]}

Fedrizzi, Alessandro ^{[3
]}

机构：

[1] Univ Queensland, Sch Math & Phys, Ctr Engn Quantum Syst, Brisbane, Qld 4072, Australia

[2] Univ Innsbruck, Inst Expt Phys, A-6020 Innsbruck, Austria

[3] Heriot Watt Univ, Inst Photon & Quantum Sci, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland

[4] Truman State Univ, Dept Phys, Kirksville, MO 63501 USA

来源：

PHYSICAL REVIEW A | 2018年 / 98卷 / 01期

基金：

澳大利亚研究理事会; 英国工程与自然科学研究理事会;

关键词：

MACROSCOPIC REALISM; INEQUALITY; VIOLATION; TIME; FORMULATION; MECHANICS; FLUX;

D O I：

10.1103/PhysRevA.98.012328

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Measurements on a single quantum system at different times reveal rich nonclassical correlations similar to those observed in spatially separated multipartite systems. Here we introduce a theory framework that unifies the description of temporal, spatial, and spatiotemporal resources for quantum correlations. We identify and experimentally demonstrate simple cases where an exact mapping between the domains is possible. We then identify correlation resources in arbitrary situations, where not all spatial quantum states correspond to a process and not all temporal measurements have a spatial analog. These results provide a starting point for the systematic exploration of multipoint temporal correlations as a powerful resource for quantum information processing.

引用

页数：7

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