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Showing 2014 · quant-phShow all
3 papers · 2 filters
quant-ph2014★ 12 cited
Concentrating tripartite quantum information
Alexander Streltsov, Soojoon Lee, Gerardo Adesso
We introduce the concentrated information of tripartite quantum states. For three parties Alice, Bob, and Charlie, it is defined as the maximal mutual information achievable betwee…
quant-ph2014★ 13 cited
Quantum messages with signatures forgeable in arbitrated quantum signature schemes
Taewan Kim, Jeong Woon Choi, Nam-Su Jho +1
Even though a method to perfectly sign quantum messages has not been known, the arbitrated quantum signature scheme has been considered as one of good candidates. However, its forg…
quant-ph2014★ 95 cited
Strong monogamy conjecture for multiqubit entanglement: The four-qubit case
Bartosz Regula, Sara Di Martino, Soojoon Lee +1
We investigate the distribution of bipartite and multipartite entanglement in multiqubit states. In particular we define a set of monogamy inequalities sharpening the conventional…