Delayed choice for entanglement swapping
作者:
Asher Peres,
期刊:
Journal of Modern Optics
(Taylor Available online 2000)
卷期:
Volume 47,
issue 2-3
页码: 139-143
ISSN:0950-0340
年代: 2000
DOI:10.1080/09500340008244032
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Two observers (Alice and Bob) independently prepare two sets of singlets. They test one particle of each singlet along an arbitrarily chosen direction and send the other particle to a third observer, Eve. At a later time, Eve performs joint tests on pairs of particles (one from Alice and one from Bob). According to Eve's choice of test and to her results, Alice and Bob can sort into subsets the samples that they have already tested, and they can verify that each subset behaves as if it consisted of entangled pairs of distant particles that have never communicated in the past, even indirectly via other particles.
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