We are happy to announce our next seminar.
Speaker: Luca Razzoli (University of Modena & Reggio Emilia, ITA)
When: Thursday, 17th December 2020, 3PM (CET time)
Where: online (Zoom) zoom.us/my/aula.x
Title: Transport efficiency of continuous-time quantum walks on graphs
Abstract:
Continuous-time quantum walk describes the propagation of a quantum particle (or an excitation) evolving continuously in time on a graph. As such, it provides a natural framework for modeling transport processes, e.g., in light-harvesting systems. In particular, the transport properties strongly depend on the initial state and on the specific features of the graph under investigation. In this talk, we are going to address the role of graph topology, and investigate the transport properties of graphs with different regularity, symmetry, and connectivity. We neglect disorder and decoherence, and assume a single trap vertex accountable for the loss processes. In particular, for each graph, we analytically determine the subspace of states having maximum transport efficiency. Our results provide a set of
benchmarks for environment-assisted quantum transport, and suggest that connectivity is a poor indicator for transport efficiency. Indeed, we observe some specific correlations between transport efficiency and connectivity for certain graphs, but in general they are uncorrelated.
We are also glad to announce two more seminars
[ more details in the next weeks — SAVE THE DATE(S) ]
Speaker: Jan Chwedenczuk (Warsaw University, POL)
When: Thursday, 7th January 2020, 3PM (CET time)
Where: online (Zoom) zoom.us/my/aula.x
Title: Many-body nonlocality as a resource for quantum-enhanced
metrology
Speaker: Abolfazl Bayat (University of Electronic Science and Technology of China Chengdu, CHN)
When: Thursday, 14th January 2020, 3PM (CET time)
Where: online (Zoom) zoom.us/my/aula.x
Title: TBA