Resource characterisation of quantum entanglement and nonlocality in multipartite settings
- Contreras Tejada, Patricia
- Julio I. de Vicente Majúa Zuzendaria
- Carlos Palazuelos Cabezon Zuzendaria
Defentsa unibertsitatea: Universidad Complutense de Madrid
Fecha de defensa: 2021(e)ko uztaila-(a)k 14
- David Pérez García Presidentea
- Angelo Lucia Idazkaria
- Ana Belen Sainz Kidea
- Marcus Huber Kidea
- Adán Cabello Quintero Kidea
Mota: Tesia
Laburpena
Quantum technologies are enjoying an unprecedented popularity, and some applicationsare already in the market. This thesis studies two phenomena that are behind a lot ofquantum technologies: entanglement and nonlocality. We focus on multipartite systems,and ask what con gurations of those systems are more useful than others. `Usefulness'takes on dierent meanings depending on the context, but, roughly speaking, we aim formore entanglement or more nonlocality.Chapter 2 is motivated by an important issue with traditional resource theories ofmultipartite entanglement: they give rise to isolated states and inequivalent forms ofentanglement. We propose two new resource theories that do not give rise to theseproblems: the resource theory of non-full-separability under full separability-preservingoperations, and the resource theory of genuine multipartite entanglement (GME) underbiseparability-preserving operations. Further, the latter theory gives rise to a uniquemaximally GME state...