Superpositions of the orbital angular momentum for applications in quantum experiments

Two different experimental techniques for preparing and analyzing superpositions of Gaussian and Laguerre-Gaussian modes are presented. These involve exploiting an interferometric method in one case and using computer-generated holograms in the other. It is shown that by shifting a hologram with res...

Full description

Saved in:
Bibliographic Details
Published inJournal of optics. B, Quantum and semiclassical optics Vol. 4; no. 2; pp. S47 - S51
Main Authors Vaziri, Alipasha, Weihs, Gregor, Zeilinger, Anton
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.04.2002
Online AccessGet full text
ISSN1464-4266
1741-3575
DOI10.1088/1464-4266/4/2/367

Cover

More Information
Summary:Two different experimental techniques for preparing and analyzing superpositions of Gaussian and Laguerre-Gaussian modes are presented. These involve exploiting an interferometric method in one case and using computer-generated holograms in the other. It is shown that by shifting a hologram with respect to an incoming Gaussian beam, different superpositions of the Gaussian and the Laguerre-Gaussian beam can be produced. An analytical expression connecting the relative phase, the amplitudes of the modes and the displacement of the hologram is given. The application of such orbital angular momenta superpositions in quantum experiments such as quantum cryptography is discussed. (Author)
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1464-4266
1741-3575
DOI:10.1088/1464-4266/4/2/367