Junctions of weakly-coupled strongly-interacting systems
Date
Monday, May 13, 2019 11:00 - 12:00
Speaker
Andrea Trombettoni (CNR-IOM and SISSA, Trieste)
Location
Big Seminar room Ground floor / Office Bldg West (I21.EG.101)
Series
Seminar/Talk
Tags
Physical Sciences Seminar
Host
Giacomo Bighin / Lemeshko Group
Contact
After briefly reviewing the use of ultracold atoms for the implementation of quantum devices, I discuss two examples of junctions made by strongly interacting systems weakly coupled between them. I present in the first part of the talk recent results on the Josephson dynamics of two ultracold fermionic gases at the unitary limit weakly linked by a controllable barrier. In the second part I discuss properties of 1D Bose gases and then of junctions of Tonks-Girardeau gases. When three Tonks-Girardeau gases are coupled, one can exactly map their Hamiltonian by means of a suitable Jordan-Wigner transformation into the Hamiltonian of the multichannel Kondo model. I will also show recent results on the experimental realization of Y-geometries with holographic traps, and comment about recent progress in atomtronics.