Media type: E-Article Title: Quantum Beat of Two Single Photons Contributor: Legero, Thomas; Wilk, Tatjana; Hennrich, Markus; Rempe, Gerhard; Kuhn, Axel Published: American Physical Society (APS), 2004 Published in: Physical Review Letters, 93 (2004) 7 Language: English DOI: 10.1103/physrevlett.93.070503 ISSN: 0031-9007; 1079-7114 Origination: Footnote: