NEW HIGH-INTENSITY SOURCE OF POLARIZATION-ENTANGLED PHOTON PAIRS

被引：2535
作者：
KWIAT, PG
MATTLE, K
WEINFURTER, H
ZEILINGER, A
SERGIENKO, AV
SHIH, YH
机构：
[1] UNIV INNSBRUCK, INST PHYS EXPTL, A-6020 INNSBRUCK, AUSTRIA
[2] UNIV MARYLAND, DEPT PHYS, BALTIMORE, MD 21228 USA
来源：
PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 24期
关键词：
D O I：
10.1103/PhysRevLett.75.4337
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report on a high-intensity source-of polarization-entangled photon pairs with high momentum definition. Type-II noncollinear phase matching in parametric down conversion produces true entanglement: No part of the wave function must be discarded, in contrast to previous schemes. With two-photon fringe visibilities in excess of 97%, we demonstrated a violation of Bell's inequality by over 100 standard deviations in less than 5 min. The new source allowed ready preparation of all four of the EPR-Bell states.
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页码：4337 / 4341
页数：5
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