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quant-ph2008★ 15 cited
On the relation between Schmidt coefficients and entanglement
Paolo Aniello, Cosmo Lupo
We consider the Schmidt decomposition of a bipartite density operator induced by the Hilbert-Schmidt scalar product, and we study the relation between the Schmidt coefficients and…
quant-ph2008★ 5 cited
Quantum state transfer in a q-deformed chain
Sonia L'Innocente, Cosmo Lupo, Stefano Mancini
We investigate the quantum state transfer in a chain of particles satisfying q-deformed oscillators algebra. This general algebraic setting includes the spin chain and the bosonic…
quant-ph2008★ 34 cited
Bipartite quantum systems: on the realignment criterion and beyond
Cosmo Lupo, Paolo Aniello, Antonello Scardicchio
Inspired by the `computable cross norm' or `realignment' criterion, we propose a new point of view about the characterization of the states of bipartite quantum systems. We conside…