Quantum mechanics is at the heart of our technology and economy - the laser and the transistor are quantum devices - but its full potential is far from being realized. Recent technological advances in optics, nanoscience and engineering allow experimentalists to create artificial structures or put microscopic and mesoscopic systems under new manipulable conditions in which quantum phenomena play a fundamental role.

Quantum technologies exploit these effects with practical purposes. The objective of Quantum Science is to discover, study, and control quantum efects at a fundamental level. These are two sides of a virtuous circle: new technologies lead to the discovery and study of new phenomena that will lead to new technologies.

Our group's aim is  to control and understand quantum phenomena in a multidisciplinary intersection of  Quantum Information, Quantum optics and cold atoms, Quantum Control, Spintronics, Quantum metrology, Atom interferometry, Superconducting qubits and Circuit QED and Foundations of Quantum Mechanics.



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Prof. Ya. B. Bazaliy (University of South Carolina, Department of Physics and Astronomy, Columbia, SC, USA) ( Seminar)

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Time:  May 26, 2017, at 12:00 am.
Place: Seminar room of Theoretical Physics Dept.

Local injection of pure spin current generates electric current vortices

Prof. Ya. B. Bazaliy, University of South Carolina, Department of Physics and Astronomy, Columbia, SC, USA;

Electrons carry charge and spin, and thus their motion may induce both electric and spin currents. The former is familiar to all, while the latter is more exotic. We will discuss generation and manifestations of spin current, its interplay with electric currents, and then focus on a specific effect where pure spin current generates electric currents in a device that is not connected to any outside source or sink of charge. We further discuss how the generation of such electric currents enhances spin diffusion.