A one-dimensional harmonically trapped ideal system with an impurity (Dr. A. Volosniev)
- Datum: 17.03.2015
- Uhrzeit: 11:30 - 14:00
- Vortragende(r): Dr. Artem Volosniev, Aarhus Universitet, Denmark
- Raum: B 2.46
- Gastgeber: 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.