Lecturer: Prof. Doron Cohen Affiliation: Department of Physics, Ben-Gurion University Abstract: We [1] show that the standard Landau and Bogoliubov superfluidity criteria fail in low- dimensional circuits. Proper determination of the superfluidity regime-diagram must account for the crucial role of chaos, an ingredient missing from the conventional stability analysis. Accordingly, we find novel types of superfluidity, associated with irregular or chaotic or breathing vortex states. [1] http://arxiv.org/abs/1412.5929 ‏האירוע הזה כולל שיחת וידאו ב-Google Hangouts. הצטרף: https://hangouts.google.com/hangouts/_/mail.huji.ac.il/condensed?hceid=b...