Multiparticle Interference of Pairwise Distinguishable Photons

Autor:	Tom A. W. Wolterink, Ian A. Walmsley, Alex E. Jones, Adrian J. Menssen, Helen M. Chrzanowski, Valery S. Shchesnovich
Rok vydání:	2020
Předmět:	Physics Photon Event (relativity) General Physics and Astronomy Interference (wave propagation) 01 natural sciences Signal Measure (mathematics) Interferometry Separable state Quantum mechanics 0103 physical sciences Pairwise comparison 010306 general physics Computer Science::Information Theory
Zdroj:	Physical Review Letters. 125
ISSN:	1079-7114 0031-9007
DOI:	10.1103/physrevlett.125.123603
Popis:	One of the central principles of quantum mechanics is that if there are multiple paths that lead to the same event and there is no way to distinguish between them, interference occurs. It is often assumed that distinguishing information in the preparation, evolution, or measurement of a system is sufficient to destroy interference. However, it is still possible for photons in distinguishable, separable states to interfere due to the indistinguishability of paths corresponding to possible exchange processes. Here we experimentally measure an interference signal that depends only on the multiparticle interference of four photons in a four-port interferometer despite pairs of them occupying distinguishable states.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1247fb099c9c3fa2d2058f9640641354 https://doi.org/10.1103/physrevlett.125.123603 Zobrazit plný text záznamu