Time：15:00-16:30, Thursday, July 16 2026
Venue：E14-212
Host：Hongguang Liu,ITS
Speaker：Tales Rick Perche, Stockholm University
Title：Vacuum Entanglement in QFT: From Theory to Experiments
Abstract：Although it is know that the vacuum of a massless scalar field contains entanglement between any pair of disjoint spacetime regions, this entanglement has not yet been quantified or experimentally measured. In this talk I will discuss recent progress on 1) the theoretical quantification of vacuum entanglement through local modes in QFT, 2) optimizations of the operational approach to vacuum entanglement extraction through the protocol of entanglement harvesting, and 3) a recent experimental proposal of entanglement harvesting, extracting entanglement from the ground state of a Bose-Einstein condensate using localized polarons that couple to it in effectively causally disconnected regions.
