79 citations · 93 across the 5 of their papers we have counts for
5 papers · 1 filter
Entanglement quantification with Fisher information
Akira kitagawa, Masahiro Takeoka, Masahide Sasaki +1
We show that the Fisher information associated with entanglement-assisted coding has a monotonic relationship with the logarithmic negativity, an important entanglement measure, fo…
Experimental demonstration of entanglement assisted coding using a two-mode squeezed vacuum state
Jun Mizuno, Kentaro Wakui, Akira Furusawa +1
We have experimentally realized the scheme initially proposed as quantum dense coding with continuous variables [Ban, J. Opt. B \textbf{1}, L9 (1999), and Braunstein and Kimble, \p…
The Quantumness of a Set of Quantum States
Christopher A. Fuchs, Masahide Sasaki
This article is an introduction to quant-ph/0302092. We propose to quantify how "quantum" a set of quantum states is. The quantumness of a set is the worst-case difficulty of trans…
Squeezing Quantum Information through a Classical Channel: Measuring the "Quantumness" of a Set of Quantum States
Christopher A. Fuchs, Masahide Sasaki
In this paper we propose a general method to quantify how "quantum" a set of quantum states is. The idea is to gauge the quantumness of the set by the worst-case difficulty of tran…
Entangled state based on nonorthogonal state
Osamu Hirota, Masahide Sasaki
Properties of entangled states based on nonorthogonal states are clarified. Especially, it is shown that they can have complete degree of entanglement.