252 citations · 3.4k across the 59 of their papers we have counts for
3 papers · 2 filters
Selective entanglement breaking
Yuma Kinoshita, Ryo Namiki, Takashi Yamamoto +2
We discuss the cases where local decoherence selectively degrades one type of entanglement more than other types. A typical case is called state ordering change, in which two input…
Simple and efficient quantum key distribution with parametric down-conversion
Yoritoshi Adachi, Takashi Yamamoto, Masato Koashi +1
We propose an efficient quantum key distribution protocol based on the photon-pair generation from parametric down-conversion (PDC). It uses the same experimental setup as the conv…
Experimental ancilla-assisted qubit transmission against correlated noise using quantum parity checking
Takashi Yamamoto, Ryoji Nagase, Junichi Shimamura +3
We report the experimental demonstration of a transmission scheme of photonic qubits over unstabilized optical fibers, which has the plug-and-play feature as well as the ability to…