Experimental demonstration of complementarity with single photons

Autor:	P. Zarda, Harald Weinfurter, Christian Kurtsiefer, C. Braig
Rok vydání:	2003
Předmět:	Quantum optics Physics Photon Physics and Astronomy (miscellaneous) business.industry General Engineering Physics::Optics General Physics and Astronomy Diamond engineering.material Complementarity (physics) law.invention Optics law engineering business Ballistic photon Beam splitter
Zdroj:	Applied Physics B: Lasers and Optics. 76:113-116
ISSN:	1432-0649 0946-2171
DOI:	10.1007/s00340-003-1106-x
Popis:	We demonstrate the principle of complementarity in quantum mechanics in a single-photon interference experiment. Single photons are provided by isolated, optically pumped nitrogen-vacancy centers in diamond, which can be easily addressed by confocal microscopy. In order to observe the particle-like behavior of photons, we perform an elementary Welcher-Weg measurement, detecting photons behind a beam splitter. In contrast, if we dispense with this Welcher-Weg information, we observe interference fringes with a visibility of about 96%, revealing the wave nature of the photon.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7e7b23bff22ca1f4446c374f5a9ce4c4 https://doi.org/10.1007/s00340-003-1106-x Zobrazit plný text záznamu Plný text ve formátu PDF