Tunneling-based quantum devices with ultracold strongly interacting atoms

Speaker: Andrea Trombettoni , CNR-IOM and SISSA, Trieste

When: November 21, 2016 (Mon), 03:00PM to 04:00PM (add to my calendar)
Location: SCI 328

This event is part of the Condensed Matter Theory Seminar Series.

After briefly reviewing the use of ultracold atoms for the implementation of quantum devices, I present in the first part of the talk recent results on the Josephson dynamics of two superfluid ultracold fermionic gases weakly linked by a controllable barrier [1]. In the second part I discuss weakly coupled Y-junctions of Tonks-Girardeau gases, showing recent results on the experimental realization of Y-geometries with holographic traps [2].

[1] G. Valtolina, A. Burchianti, A. Amico, E. Neri, K. Xhani, J. A. Seman, A. Trombettoni, A. Smerzi, M. Zaccanti, M. Inguscio, and G. Roati, "Josephson effect in fermionic superfluids across the BEC-BCS crossover", Science 350, 1505 (2015).

[2] F. Buccheri, G. Bruce, A. Trombettoni, D. Cassettari, H. Babujian, V. Korepin, and P. Sodano, "Holographic optical traps for atom-based topological Kondo devices", New J. Phys. 18, 075012 (2016).