Dispersion-independent high-visibility quantum interference in ultrafast parametric down-conversion

被引:14
作者
Atatüre, M
Sergienko, AV
Saleh, BEA
Teich, MC
机构
[1] Boston Univ, Dept Phys, Quantum Imaging Lab, Boston, MA 02215 USA
[2] Boston Univ, Dept Elect & Comp Engn, Quantum Imaging Lab, Boston, MA 02215 USA
关键词
D O I
10.1103/PhysRevLett.84.618
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We demonstrate the effective removal of intrinsic distinguishability between entangled-photon pairs in femtosecond spontaneous parametric down-conversion. High-visibility quantum interference is recovered (an increase to 96% from 17%) while preserving the high photon-flux density associated with the use of longs nonlinear crystals. This new technique is expected to serve as a basic component in the preparation of multiphoton entangled states.
引用
收藏
页码:618 / 621
页数:4
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