YQI Talk - Christian Kokail - Institut für Quantenoptik und Quanteninformation

Event time: 
Monday, January 23, 2023 - 10:30am to 11:30am
YQI Researchers
YQI Seminar Room & Zoom See map
Event description: 
Learning about Entanglement in Quantum Simulation:
Classical and Quantum Algorithms
The analysis of entanglement properties, and the entanglement spectrum in particular, has been established as a versatile tool to analyze complex quantum many-body states in numerical simulations. The application of these techniques in modern quantum simulation experiments requires the development of protocols that are efficiently applicable given the available controllability of the quantum device, while at the same time being scalable in terms of the required number of experimental runs. In this talk, I will discuss recent theoretical and experimental efforts to measure entanglement properties of large systems, based on reconstructing the modular Hamiltonian of subsystems of quantum states from local measurements. In contrast to my previous talk given in the course of the James Mossman Seminar, the second part of the talk will focus on the extraction of the entanglement spectrum using efficient quantum protocols and on how this information can be used to characterize topological phases of matter. 
Livestream the talk on Zoom (Yale login only)