0000000000610437
AUTHOR
C. Di Franco
A deeper insight into quantum state transfer from an information flux viewpoint
We use the recently introduced concept of information flux in a many-body register in order to give an alternative viewpoint on quantum state transfer in linear chains of many spins.
FLUSSI TURISTICI E GESTIONE DEI RIFIUTI: IL CASO DI PANTELLERIA
Ogni estate migliaia di turisti raggiungono l’isola siciliana per le vacanze e con loro aumenta la produzione di rifiuti e i problemi legati alla sua gestione. Di fronte a queste preoccupazioni, la Facoltà di Architettura dell’Università di Palermo insieme al Dipartimento di Energia, Ingegneria dell’Informazione e Modelli Matematici dell’Università di Palermo, hanno elaborato uno studio di fattibilità che prevede l’inserimento di un impianto per la valorizzazione energetica dei RSU e delle biomasse.
Multidimensional quantum walks: Diabolical points, optical wave-like propagation, and multipartite entanglement
Quantum walks (QWs) are important for quantum information science, but are becoming also interesting for other fields of research as this simple quantum diffusion model finds analogues in diverse physical systems, optical ones in particular. The experimental capabilities regarding QWs have remarkably increased along recent years and several aspects of QWs are now open to experimental research, multidimensional QWs in particular [1].
Information-flux approach to multiple-spin dynamics
We introduce and formalize the concept of information flux in a many-body register as the influence that the dynamics of a specific element receive from any other element of the register. By quantifying the information flux in a protocol, we can design the most appropriate initial state of the system and, noticeably, the distribution of coupling strengths among the parts of the register itself. The intuitive nature of this tool and its flexibility, which allow for easily manageable numerical approaches when analytic expressions are not straightforward, are greatly useful in interacting many-body systems such as quantum spin chains. We illustrate the use of this concept in quantum cloning an…