614 citations · 6k across the 120 of their papers we have counts for
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Monogamy of entanglement and other correlations
Masato Koashi, Andreas Winter
It has been observed by numerous authors that a quantum system being entangled with another one limits its possible entanglement with a third system: this has been dubbed the "mono…
Size-dependent decoherence of excitonic states in semiconductor microcrystallites
Yu-xi Liu, A. Miranowicz, S. K. Ozdemir +2
The size-dependent decoherence of the exciton states resulting from the spontaneous emission is investigated in a semiconductor spherical microcrystallite under condition $a_{B}\ll…
Entanglement cost of generalised measurements
Richard Jozsa, Masato Koashi, Noah Linden +4
Bipartite entanglement is one of the fundamental quantifiable resources of quantum information theory. We propose a new application of this resource to the theory of quantum measur…
Unconditionally Secure Key Distribution Based on Two Nonorthogonal States
Kiyoshi Tamaki, Masato Koashi, Nobuyuki Imoto
We prove the unconditional security of the Bennett 1992 protocol, by using a reduction to an entanglement distillation protocol initiated by a local filtering process. The bit erro…