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20202025
most citedEntangled symmetric states and copositive matrices

14 citations · 39 across the 6 of their papers we have counts for

collaborators

6 papers

quant-ph2025★ 7 cited

Symmetric quantum states: a review of recent progress

Carlo Marconi, Guillem Müller-Rigat, Jordi Romero-Pallejà +2

Symmetric quantum states are fascinating objects. They correspond to multipartite systems that remain invariant under particle permutations. This symmetry is reflected in their com…

quant-ph2025

Entanglement in the symmetric subspace: mapping multipartite to bipartite states

Carlo Marconi, Satoya Imai

We propose a technique to investigate multipartite entanglement in the symmetric subspace. Our approach is to map an -qubit symmetric state onto a bipartite symmetric state of h…

quant-ph2024★ 7 cited

Multipartite entanglement in the diagonal symmetric subspace

Jordi Romero-Pallejà, Jennifer Ahiable, Alessandro Romancino +2

We investigate the entanglement properties in the symmetric subspace of -partite -dimensional systems (qudits). For diagonal symmetric states, we show that there is no bound…

quant-ph2022★ 7 cited

Robustness of non-locality in many-body open quantum systems

Carlo Marconi, Andreu Riera-Campeny, Anna Sanpera +1

Non-locality consists in the existence of non-classical correlations between local measurements. So far, it has been investigated mostly in isolated quantum systems. Here we show t…

quant-ph2021★ 4 cited

The role of coherence theory in attractor quantum neural networks

Carlo Marconi, Pau Colomer Saus, María García Díaz +1

We investigate attractor quantum neural networks (aQNNs) within the framework of coherence theory. We show that: i) aQNNs are associated to non-coherence-generating quantum channel…

quant-ph2020★ 14 cited

Entangled symmetric states and copositive matrices

Carlo Marconi, Albert Aloy, Jordi Tura +1

Entanglement in symmetric quantum states and the theory of copositive matrices are intimately related concepts. For the simplest symmetric states, i.e., the diagonal symmetric (DS)…