Research

Heralded generation of ultrafast single photons in pure quantum states


Reference:

Mosley, P. J., Lundeen, J. S., Smith, B. J., Wasylczyk, P., U’Ren, A. B., Silberhorn, C. and Walmsley, I. A., 2008. Heralded generation of ultrafast single photons in pure quantum states. Physical Review Letters, 100 (13), 133601.

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Official URL:

http://dx.doi.org/10.1103/PhysRevLett.100.133601

Abstract

We present an experimental demonstration of heralded single photons prepared in pure quantum states from a parametric down-conversion source. It is shown that, through controlling the modal structure of the photon pair emission, one can generate pairs in factorable states and thence eliminate the need for spectral filters in multiple-source interference schemes. Indistinguishable heralded photons were generated in two independent spectrally engineered sources and Hong-Ou-Mandel interference observed between them without spectral filters. The measured visibility of 94.4% sets a minimum bound on the mean photon purity.

Details

Item Type Articles
CreatorsMosley, P. J., Lundeen, J. S., Smith, B. J., Wasylczyk, P., U’Ren, A. B., Silberhorn, C. and Walmsley, I. A.
DOI10.1103/PhysRevLett.100.133601
DepartmentsFaculty of Science > Physics
RefereedYes
StatusPublished
ID Code27595

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