59 citations
2 papers
quant-ph2005★ 36 cited
On the distribution of 1550-nm photon pairs efficiently generated using a periodically poled lithium niobate waveguide
Shigehiko Mori, Jonas Soderholm, Naoto Namekata +1
We report on the generation of photon pairs in the 1550-nm band suitable for long-distance fiber-optic quantum key distribution. The photon pairs were generated in a periodically p…
quant-ph2005★ 59 cited
Distance-based degrees of polarization for a quantum field
A. B. Klimov, L. L. Sanchez-Soto, E. C. Yustas +2
It is well established that unpolarized light is invariant with respect to any SU(2) polarization transformation. This requirement fully characterizes the set of density matrices r…