BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Magnetism in triangular and hexagonal optical lattices - Klaus Sen
 gstock (Hamburg University)
DTSTART:20120319T153000Z
DTEND:20120319T170000Z
UID:TALK35846@talks.cam.ac.uk
CONTACT:6270
DESCRIPTION:Magnetism plays a key role in modern technology and stimulates
  research in several branches of condensed matter physics. Although the th
 eory of classical magnetism is well developed\, the demonstration of a wid
 ely tunable experimental system has remained an elusive goal. We present t
 he realization of a large-scale simulator for classical magnetism on a tri
 angular lattice by exploiting the particular properties of a quantum syste
 m [1]. We use the motional degrees of freedom of atoms trapped in an optic
 al lattice to simulate a large variety of magnetic phases: ferromagnetic\,
  antiferromagnetic\, and even frustrated spin configurations. A rich phase
  diagram is revealed with different types of phase transitions. Our result
 s provide a route to study highly debated phases like spin-liquids as well
  as the dynamics of quantum phase transitions.\n\n[1] Struck et al.\, Scie
 nce\, 21 July 2011 (10.1126/science.1207239)\n\n
LOCATION:Rutherford building\, Seminar Room B
END:VEVENT
END:VCALENDAR