BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Excitations with a Twist - Professor Bartomeu Monserrat\, Universi
 ty of Cambridge 
DTSTART:20250507T133000Z
DTEND:20250507T143000Z
UID:TALK224701@talks.cam.ac.uk
CONTACT:Lisa Masters
DESCRIPTION:Quantum geometry allows us to quantify the distance between qu
 antum states. It underpins numerous phenomena in condensed matter physics\
 , from electron transport in flat band systems to topological twists of el
 ectronic wave functions. In this talk\, I will give an overview of how qua
 ntum geometry can be extended to explore the excited states of materials. 
 Focusing on excitons\, bound electron-hole pairs\, I will first give an ov
 erview of the possible exciton topological phases as they arise from the u
 nderlying electron and hole states. I will next describe how quantum geome
 try dictates that topological excitons are larger than their trivial count
 erparts and show how this results in enhanced exciton diffusion. I will us
 e a family of organic semiconductors hosting topological excitons to illus
 trate these ideas.\n
LOCATION:Unilever Lecture Theatre\, Yusuf Hamied Department of Chemistry
END:VEVENT
END:VCALENDAR