Highly indistinguishable heralded single-photon sources using parametric down conversion
نویسندگان
چکیده
منابع مشابه
Highly indistinguishable heralded single-photon sources using parametric down conversion.
We theoretically and experimentally investigate the conditions necessary to realize highly indistinguishable single-photon sources using parametric down conversion. The visibilities of Hong-Ou-Mandel (HOM) interference between photons in different fluorescence pairs were measured and a visibility of 95.8 ± 2% was observed using a 0.7-mm-long beta barium borate crystal and 2-nm bandpass filters,...
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An ideal controlled-NOT gate followed by projective measurements can be used to identify specific Bell states of its two input qubits. When the input qubits are each members of independent Bell states, these projective measurements can be used to swap the post-selected entanglement onto the remaining two qubits. Here we apply this strategy to produce heralded two-photon polarization entanglemen...
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ALEXANDRE SOUJAEFF†*, SHIGEKI TAKEUCHI†, KEIJI SASAKI†, TOSHIO HASEGAWA‡, MITSURU MATSUI‡ †Japan Science and Technology Corporation-CREST Project; Research Institute for Electronic Science, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo 060-0812, Japan, Tel +81-11-706-2648, Fax +81-11-706-3693 ‡Mitsubishi Electric Corporation, Ofuna 5-1-1, Kamakura, 247-8501, Japan, TEL +81467-41-2561, ...
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The generation of heralded pure Fock states via spontaneous parametric down-conversion (PDC) relies on perfect photon-number correlations in the output modes. Correlations in any other degree of freedom, however, degrade the purity of the heralded state. In this paper, we investigate spectral entanglement between the two output modes of a periodically poled waveguide. With the intent of generat...
متن کاملOptimised generation of heralded Fock states using parametric down conversion
The generation of heralded pure Fock states via spontaneous parametric down conversion (PDC) relies on perfect photon-number correlations in the output modes. Correlations in any other degree of freedom, however, degrade the purity of the heralded state. In this paper, we investigate spectral entanglement between the two output modes of a periodically poled waveguide. With the intent of generat...
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ژورنال
عنوان ژورنال: Optics Express
سال: 2012
ISSN: 1094-4087
DOI: 10.1364/oe.20.015275