3 papers
quant-ph2026
The geometry of absolute separability and other convex matrix properties from spectrum
Jennifer Ahiable, Naga Bhavya Teja Kothakonda, Andreas Winter
We investigate the geometric structure of the set of spectra of bipartite absolute separable states () and absolute positive partial transpose states ($\mathrm…
quant-ph2025
Certifying bipartite entangled states with few local measurements: from separable stabilizers to applications
Jennifer Ahiable, Andreas Winter
We show a simple and systematic way to certify any given bipartite state as the unique joint -eigenstate of two separable projectors, each of which can be measured with simple l…
quant-ph2025
Multipartite entanglement in the diagonal symmetric subspace
Jordi Romero-PallejÃ, 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…