Citro, Roberta

Date:   Monday, Mar. 4, 2019
Time:   13:30
Place:   ETH Zurich, Hönggerberg, HPF G 6
Host:    Laura Corman

Quantum pumping: from solid state systems to cold atoms

Roberta Citro
Università degli Studi di Salerno, Italy

A direct current (dc) is usually associated to a dissipative flow of the electrons or atoms in response to an applied bias voltage. However, in systems of mesoscopic scale a dc current can be generated even at zero bias. This captivating quantum coherent effect is called quantum pumping (quantum charge pumping to be more precise). A device capable of providing such effect is called a quantum pump. In this seminar I will discuss various examples of quantum pumps both in solid states devices (normal state/superconducting junctions) and in cold atoms systems with a focus on spin current generation beyond the charge ones.