Quantum interference by coherence transfer from spin to orbital angular momentum of photons

被引：1

作者：

Nagali, E. ^{[1
]}

Sciarrino, F. ^{[1
]}

Sansoni, L. ^{[1
]}

De Martini, F. ^{[1
,2
]}

Marrucci, L. ^{[3
,4
]}

Piccirillo, B. ^{[3
,4
]}

Karimi, E. ^{[3
]}

Santamato, E. ^{[3
,4
]}

机构：

[1] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[2] Acad Nazl Lincei, I-00165 Rome, Italy

[3] Univ Naples Federico II, Dipartimento Sci Fis, F-80126 Naples, Italy

[4] Compl Univ Monte S Angelo, CNR, INFM Coherentia, I-80126 Naples, Italy

来源：

PHOTON COUNTING APPLICATIONS, QUANTUM OPTICS, AND QUANTUM INFORMATION TRANSFER AND PROCESSING II | 2009年 / 7355卷

关键词：

Orbital angular momentum; entanglement; Hong-Ou-Mandel effect; ENTANGLEMENT; LIGHT;

D O I：

10.1117/12.821083

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The orbital angular momentum carried by single photons represents a promising resource in the quantum information field. In this paper we report the characterization in the quantum regime of a recently introduced optical device, known as q-plate. Exploiting the spin-orbit coupling that takes place in the q-plate, it is possible to transfer coherently the information from the polarization to the orbital angular momentum degree of freedom, and viceversa. Hence the q-plate provides a reliable bi-directional interface between polarization and orbital angular momentum. As a first paradigmatic demonstration of the q-plate properties, we have carried out the first experimental Hong-Ou-mandel effect purely observed in the orbital angular momentum degree of freedom.

引用

页数：11

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