Seminars coming up

[CM ICTP - Trieste]

CONDENSED MATTER AND  STATISTICAL PHYSICS SECTION


INFORMAL SEMINAR





Wednesday, 11 March   -    4:00 p.m.


Seminar Room -  Leonardo Bldg. - first floor



S.  RAMANAN

( Center for High Energy Physics, IIS, Bangalore )

"Signatures of the superfluid to  Mott insulator transition in cold  
bosonic atoms in 1D optical lattice"

Abstract

We study the Bose-Hubbard model using the finite size density matrix  
renormalization group method. We obtain a complete phase diagram for  
a system in the presence of a harmonic trap and compare it with that  
of the homogeneous system.

The superfluid to the Mott insulator phase transition is investigated  
using different experimental signatures of these phases in quantities  
such as momentum distribution, visibility, condensate fraction and  
the total number of bosons at a particular density. The relationships  
between the various experimental signatures and the phase diagram are  
highlighted.

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CONDENSED MATTER SECTION




SEMINAR on   Disorder and strong electron correlations



Thursday, 12 March      -  11:00 a.m.





Seminar Room,  Leonardo Building - first floor





P. SODANO    ( University of Perugia )



" Stretched quantum states emerging from Majorana zero modes"



Abstract



Effects associated with the existence of isolated zero modes of  
Majorana fermions are discussed. It is argued that the quantization  
of this system necessarily contains highly extended (stretched) quantum

states and that, populating or depopulating such states by  
interacting with the quantum system, leads to long- ranged  
teleportation-like processes.  A model consisting of a quantum wire  
embedded in a p-wave superconductor is discussed as an explicit - and  
exactly solvable- example of a physical system with isolated Majorana  
zero modes.