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-ph2026
Threshold entanglement sharing: quantum states with absolutely separable marginals
Albert Rico, Jofre Abellanet-Vidal, Naga Bhavya Teja Kothakonda +2
Motivated to understand how entanglement resources can be distributed in quantum networks, we introduce threshold entanglement (TE) states. These are multipartite quantum states wh…
quant-ph2025
Cloning Quantum Channels
Pavel Sekatski, Yelena Guryanova, Naga Bhavya Teja Kothakonda +1
We consider the problem of deterministically cloning quantum channels with respect to the best attainable rate and the highest quality, so-called optimal cloning. We demonstrate th…