809 citations · 2.6k across the 42 of their papers we have counts for
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quant-ph2012★ 47 cited
Entangled symmetric states of N qubits with all positive partial transpositions
R. Augusiak, J. Tura, J. Samsonowicz +1
From both theoretical and experimental points of view symmetric states constitute an important class of multipartite states. Still, entanglement properties of these states, in part…
quant-ph2012★ 53 cited
Four-qubit entangled symmetric states with positive partial transpositions
J. Tura, R. Augusiak, P. Hyllus +3
We solve the open question of the existence of four-qubit entangled symmetric states with positive partial transpositions (PPT states). We reach this goal with two different approa…