A one-dimensional harmonically trapped ideal system with an impurity (Dr. A. Volosniev)
- Date: Mar 17, 2015
- Time: 11:30 AM - 02:00 PM (Local Time Germany)
- Speaker: Dr. Artem Volosniev, Aarhus Universitet, Denmark
- Room: B 2.46
- Host: MPQ, Theory Division
We study impure mesoscopic one-dimensional ensembles with majority particles either non-interacting fermions or bosons.
Assuming a short-range interparticle potential I will first discuss an
eigenspectrum for a fermionic host medium; there a very strong repulsive
interaction realizes a spin chain, the coupling coefficients for which
can be established if the masses of impurity and majority are the same.
Next I will address some ground state properties of an impurity in a
bosonic bath and I also sketch what happens if the interaction strength
is suddenly changed.