Bartosz Regula

Geometric approach to entanglement quantification with polynomial measures

2016 · Physical Review A

We show that the quantification of entanglement of any rank-2 state with any polynomial entanglement measure can be recast as a geometric problem on the corresponding Bloch sphere. This approach provides insight into the properties …

Fundamental limitations on quantum channel manipulation

2020 · arXiv (Cornell University)

We establish universal limitations on the manipulation of quantum channel resources under the most general, adaptive transformation protocols. Focusing in particular on the class of distillation tasks -- which can be understood either as the …

Reversibility of quantum resources through probabilistic protocols

2023 · arXiv (Cornell University)

Among the most fundamental questions in the manipulation of quantum resources such as entanglement is the possibility of reversibly transforming all resource states. The key consequence of this would be the identification of a unique …