4 citations · 4 across the 1 of their papers we have counts for
2 papers
quant-ph2007★ 4 cited
High-efficiency single photon detector combined with an ultra-small APD module and a self-training discriminator for high-speed quantum cryptosystems
Seigo Takahashi, Akio Tajima, Akihisa Tomita
A single-photon avalanche detector (SPAD) for high-speed quantum-key generation has successfully been developed. It has the highest photon detection repetition frequency and the lo…
quant-ph2004
Macroscopic entanglement of many-magnon states
Tomoyuki Morimae, Ayumu Sugita, Akira Shimizu
We study macroscopic entanglement of various pure states of a one-dimensional N-spin system with N>>1. Here, a quantum state is said to be macroscopically entangled if it is a supe…