"Superluminal" transmission via entanglement, superoscillations, and quasi-Dirac distributions

被引：13
|
作者：
Sokolovski, D. [1 ,2 ,3 ]
Mayato, R. Sala [4 ]
机构：
[1] Univ Basque Country, Dept Chem Phys, Leioa, Spain
[2] Basque Fdn Sci, IKERBASQUE, E-48011 Bilbao, Bizkaia, Spain
[3] Queens Univ Belfast, Sch Math & Phys, Belfast BT7 1NN, Antrim, North Ireland
[4] Univ La Laguna, IUdEA, E-38204 San Cristobal La Laguna, SC De Tenerife, Spain
来源：
PHYSICAL REVIEW A | 2010年 / 81卷 / 02期
关键词：
OPTICAL SUPERRESOLUTION; TIME; EVANESCENT; PARTICLE;
D O I：
10.1103/PhysRevA.81.022105
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We analyze a system in which, due to entanglement between the spin and spatial degrees of freedom, the reduced transmitted state has the shape of the freely propagating pulse translated in the complex coordinate plane. In the case an apparently "superluminal" advancement of the pulse, the delay amplitude distribution is found to be a peculiar approximation to the Dirac delta function, and the transmission coefficient exhibits a well-defined superoscillatory window. Analogies with potential tunneling and Wheeler's delayed choice experiment are highlighted.
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页数：4
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