Conditional quantum-state engineering in repeated 2-photon down-conversion

被引：12

作者：

Clausen, J

Hansen, N

Knöll, L

Mlynek, J

Welsch, DG

机构：

[1] Univ Jena, Inst Theoret Phys, D-07743 Jena, Germany

[2] Univ Konstanz, Fak Phys, D-78457 Constance, Germany

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2001年 / 72卷 / 01期

关键词：

D O I：

10.1007/s003400000480

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The U(1,1) and U(2) transformations realized by three-mode interaction in the respective parametric approximations are studied in conditional measurement, and the corresponding non-unitary transformation operators are derived. As an application, the preparation of single-mode quantum states using an optical feedback loop is discussed, with special emphasis on Fock-state preparation. For that example, the influence of non-perfect detection and feedback is also considered.

引用

页码：43 / 50

页数：8

共 26 条

[1] QUASI-CONTINUOUS MEASUREMENTS OF PHOTON NUMBER [J].