arXiv subjects

Jie Chen

Publications and source records attributed to Jie Chen.

758 records · Page 43Linked to original sources

arXiv2006

Stable polarization-encoded quantum key distribution in fiber

Polarizations of single-photon pulses have been controlled with long-term stability of more than 10 hours by using an active feedback technique for auto-compensation of unpredictable polarization scrambling in long-distance fiber. Experimental tests of long-term operations in 50, 75 and 100 km fibers demonstrated that such a single-photon polarization control supported stable polarization encoding in long-distance fibers to facilitate stable one-way fiber system for polarization-encoded quantum key distribution, providing quantum bit error rates below the absolute security threshold.

quant-ph↗

arXiv2000

Bose Symmetry Interference Effects of $4π$ Final States

We carefully analyze the relative branching ratios of $4π$ final states $π^+π^-π^+π^-$, $π^+π^-π^0π^0$ and $π^0π^0π^0π^0$, from various resonances of $J^{PC}=0^{++}$, $0^{-+}$, $2^{++}$. We find that the Bose symmetry interference effects would make their ratios to obviously differ from the naive counting values without considering these effects. The results should be applied to estimate correctly various $4π$ decay branching ratios of relevant resonances.

hep-ph↗