The Technology Innovation Institute

Abstract:

Atomtronics is an emerging field that aims to manipulate ultracold atom moving in matter wave circuits for both fundamental studies in quantum science and technological applications. The field draws a lot from mesoscopic physics, the scope of which, in turn, can be widened by the specific capabilities of cold atoms. In this talk, I will provide two examples in which the interplay between superconducting and atomtronic circuits is particularly fruitful.

In the first part of the talk,I will discuss how bright solitons originally studied for cold atoms trapped in one dimensional lattices allow to get relevant insights on the physical behavior of superconducting transmons chains. In the second part of the talk, I will consider driven atomic Josephson junctions realized by coupling two two-dimensional atomic clouds with a tunneling barrier. For such a system, I will show that the time-averaged particle imbalance across the junction features a step-like behavior that is the analog of Shapiro steps observed in driven superconducting Josephson junctions. Fin ally, I will sketch how to make an atomic Josephson amplifier.

About the Speaker:

Prof. Amico is Executive Director of the Quantum Physics Division of Technology Innovation Institute (Abu Dhabi), Professor of Theoretical Condensed Matter Physics, University of Catania and member of the Istituto Nazionale di Fisica Nucleare (INFN) (Italy). He is 'Honorary Professor’ University of Kent (UK), holds the ‘Lanef-Chaired' excellence' in Grenoble (France) and the ‘Distinguished Invited Professor' position at the joint Franco-Singaporean MajuLab CNRS-UNS-NUS-NTU. Prof. Amico research focuses on quantum technology and quantum statistical physics, ranging from mathematical physics to many-body, mesoscopic physics and ultra-cold gases.

Location: M253

Inviter: 范桁

Contact：82649518