46 citations · 83 across the 3 of their papers we have counts for
3 papers
quant-ph2017★ 46 cited
Separability of diagonal symmetric states: a quadratic conic optimization problem
Jordi Tura, Albert Aloy, Ruben Quesada +2
We study the separability problem in mixtures of Dicke states i.e., the separability of the so-called Diagonal Symmetric (DS) states. First, we show that separability in the case o…
quant-ph2017★ 18 cited
Entanglement and Nonlocality in Diagonal Symmetric States of -qubits
Ruben Quesada, Swapan Rana, Anna Sanpera
We analyze entanglement and nonlocal properties of the convex set of symmetric -qubits states which are diagonal in the Dicke basis. First, we demonstrate that within this set,…
quant-ph2013★ 19 cited
Best Separable Approximation of multipartite diagonal symmetric states
Ruben Quesada, Anna Sanpera
The structural study of entanglement in multipartite systems is hindered by the lack of necessary and sufficient operational criteria able to discriminate among the various entangl…