2 Joint seminars coming up

[Cond.Matt. & Stat.Mech.Section]

JOINT ICTP/SISSA STATISTICAL PHYSICS SEMINAR



Tuesday, 18 December -   11:00 a.m.

 


SISSA, Santorio Building, Room 128 (1st Floor)
 

H.-C. NÄGERL   ( Innsbruck University )


"Ultracold atoms with tunable interactions in confined geometry"



Abstract

 
Ensembles of ultracold atoms and molecules loaded into lattice potentials are ideally suited to perform model studies of condensed matter systems. In fact, the hope is that ultracold atoms and molecules will some day find use as “quantum simulators” to simulate the properties of a complex many-body system in a fully quantum way.  I will present a series of experiments with ultracold atoms in lattices for we tune the interaction properties. For example, we produce a meta-stable Mott state pinned by attractive interactions. In one-dimensional geometry, we investigate the transition to a pseudo anti-ferromagnetic state. I will outline our attempts to go beyond local interactions by preparing dipolar quantum gases of heteronuclear molecules.


===


JOINT ICTP/SISSA STATISTICAL PHYSICS SEMINAR

 

Wednesday, 19 December -   11:30 a.m.

 

SISSA, Santorio Building,  Room 128 (1st Floor)



M. BURRELLO   ( Leiden University )

 
"Topological blockade and braiding  of   non-Abelian anyons via interactions"


Abstract



The fractionally charged quasiparticles appearing in the 5/2 fractional quantum Hall plateau are predicted to have an extra non-local degree of freedom, known as topological charge.  I will show how this topological charge can block the tunnelling of these particles, and how such 'topological blockade' can be used to readout their topological charge.  Moreover I will examine more in general the role that interactions between non-Abelian anyons play in topological quantum computation and how these interactions can be exploited to implement braiding operators.