957 citations
- Maxwell Institute for Mathematical SciencesGB96 papers
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5 papers · 2 filters
Quantum spin transistor with a Heisenberg spin chain
O. V. Marchukov, A. G. Volosniev, M. Valiente +2
We propose and analyze a scheme for conditional state transfer in a Heisenberg spin chain which realizes a quantum spin transistor. In our scheme, the absence or presence of…
Experimental transmission of quantum digital signatures over 90-km of installed optical fiber using a differential phase shift quantum key distribution system
Robert J. Collins, Ryan Amiri, Mikio Fujiwara +7
Quantum digital signatures apply quantum mechanics to the problem of guaranteeing message integrity and non-repudiation with information-theoretical security, which are complementa…
The effect of component variations on the gate fidelity in linear optical networks
Jonathan Crickmore, Jonathan Frazer, Scott Shaw +1
We investigate the effect of variations in beam splitter transmissions and path length differences in the nonlinear sign gate that is used for linear optical quantum computing. We…
Detection-dependent six-photon NOON state interference
Rui-Bo Jin, Mikio Fujiwara, Ryosuke Shimizu +7
NOON state interference (NOON-SI) is a powerful tool to improve the phase sensing precision, and can play an important role in quantum sensing and quantum imaging. However, most of…
Dynamical Memory Effects in Correlated Quantum Channels
Carole Addis, Göktuğ Karpat, Chiara Macchiavello +1
Memory effects play a fundamental role in the study of the dynamics of open quantum systems. There exist two conceptually distinct notions of memory discussed for quantum channels…