27 citations · 80 across the 10 of their papers we have counts for
3 papers · 1 filter
Positive reduction from spectra
Maria Anastasia Jivulescu, Nicolae Lupa, Ion Nechita +1
We study the problem of whether all bipartite quantum states having a prescribed spectrum remain positive under the reduction map applied to one subsystem. We provide necessary and…
Integral conditions for nonuniform -dichotomy on the half-line
António J. G. Bento, Nicolae Lupa, Mihail Megan +1
We give necessary integral conditions and sufficient ones for the existence of a general concept of -dichotomy for evolution operators defined on the half-line which includes as…
On the reduction criterion for random quantum states
Maria Anastasia Jivulescu, Nicolae Lupa, Ion Nechita
In this paper we study the reduction criterion for detecting entanglement of large dimensional bipartite quantum systems. We first obtain an explicit formula for the moments of a r…