BEGIN:VCALENDAR
VERSION:2.0
PRODID:researchseminars.org
CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Hannah Price (Birmingham University)
DTSTART:20210308T170000Z
DTEND:20210308T180000Z
DTSTAMP:20260423T021422Z
UID:QM3/42
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/QM3/42/">Exp
 loring 4D topological physics in the laboratory</a>\nby Hannah Price (Birm
 ingham University) as part of Quantum Matter meets Maths (IST\, Lisbon)\n\
 n\nAbstract\nSpatial dimensionality plays a key role in our understanding 
 of topological physics\, with different topological invariants needed to c
 haracterise systems with different numbers of spatial dimensions. In a 2D 
 quantum Hall system\, for example\, a robust quantisation of the Hall resp
 onse is related to the first Chern number: a 2D topological invariant of t
 he electronic energy bands. Generalising to more spatial dimensions\, it w
 as shown that a new type of quantum Hall effect could emerge in four dimen
 sions\, but where the quantised response was related to a four-dimensional
  topological invariant\, namely the second Chern number. While systems wit
 h four spatial dimensions may seem abstract\, recent developments in ultra
 cold atoms and photonics have opened the door to exploring such higher-dim
 ensional topological physics experimentally. In this talk\, I will introdu
 ce the theory of 4D topological phases of matter\, before discussing recen
 t experiments in cold atoms\, photonics and electrical circuits that have 
 begun to probe aspects of this physics in the laboratory.\n
LOCATION:https://researchseminars.org/talk/QM3/42/
END:VEVENT
END:VCALENDAR