BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Symmetry breaking in a gas of bosons - an approach using construct
 ive field theory - Horst Knoerrer (ETH Zürich)
DTSTART:20180905T103000Z
DTEND:20180905T113000Z
UID:TALK109204@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:T.Balaban\, J.Feldman\, E.Trubowitz and the speaker have the l
 ong term goal to rigorously demonstrate symmetry breaking in a gas of weak
 ly interaction bosons hopping on a three-dimensional lattice. Technically\
 , to show that the correlation functions decay at a nonintegrable rate whe
 n the chemical potential is sufficiently positive\, the nonintegrability r
 eflecting the presence of a long range Goldstone boson mediating the intea
 ction between quasiparticles in the superfluid condensate.<br><br>In addit
 ion to a report on the status of this program\, I will try to describe in 
 more detail the method of block spin transformations that we use to define
  and control a renormalization group flow.
LOCATION:Seminar Room 1\, Newton Institute
END:VEVENT
END:VCALENDAR