output
19942026
most citedQuantum secret sharing

3.4k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions
Showing 1997 · quant-phShow all

6 papers · 2 filters

quant-ph1997★ 251 cited

Universal Algorithm for Optimal Estimation of Quantum States from Finite Ensembles

Radoslav Derka, Vladimir Buzek, Artur Ekert

We present a universal algorithm for the optimal quantum state estimation of an arbitrary finite dimensional system. The algorithm specifies a physically realizable positive operat…

quant-ph1997

Realization of nonlinear oscillators with a trapped ion

G. Drobny, B. Hladky

We consider a trapped ion with a quantized center-of-mass motion in 2D trap potential. With external laser fields the effective (non)linear coupling of two orthogonal vibrational m…

quant-ph1997★ 181 cited

Quantum copying: A network

V. Buzek, S. L. Braunstein, M. Hillery +1

We present a network consisting of quantum gates which produces two imperfect copies of an arbitrary qubit. The quality of the copies does not depend on the input qubit. We also sh…

quant-ph1997★ 28 cited

Reconstruction of quantum states of spin systems via the Jaynes principle of maximum entropy

V. Buzek, G. Drobny, G. Adam +2

We apply the Jaynes principle of maximum entropy for the partial reconstruction of correlated spin states. We determine the minimum set of observables which are necessary for the c…

quant-ph1997★ 10 cited

From quantum Bayesian inference to quantum tomography

R. Derka, V. Buzek, G. Adam +1

We derive an expression for a density operator estimated via Bayesian quantum inference in the limit of an infinite number of measurements. This expression is derived under the ass…

quant-ph1997★ 96 cited

Broadcasting of entanglement via local copying

V. Buzek, V. Vedral, M. B. Plenio +2

We show that inseparability of quantum states can be partially broadcasted (copied, cloned) with the help of local operations, i.e. distant parties sharing an entangled pair of spi…