PAIRING EFFECT OF PHOTONS IN NONLINEAR POLAR CRYSTALS

被引：26

作者：

CHENG, Z ^{[1
]}

机构：

[1] CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,BEIJING 100080,PEOPLES R CHINA

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.67.2788

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is shown that photons in a polar crystal with a high nonlinearity can feel an attractive effective interaction by exchange of virtual phonons. A coherent state. is unstable with respect to such an interaction, and a superguiding state is formed through the association of photons in pairs with opposite wave vectors and spins. The photon pairs travel without scattering attenuations. If the photons propagating in a waveguide enter the superguiding state, the waveguide exhibits an ultralow energy loss.

引用

页码：2788 / 2791

页数：4

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