cfaed Seminar Series

Prof. Kicheon Kang , Department of Physics, Chonnam National University

How to demonstrate quantum locality of the Aharonov-Bohm effect in nanoscale devices?

03.05.2018 (Thursday) Seminar Room 115 , Hallwachsstr. 3 (HAL) , 01069 Dresden


It is generally believed that the locality principle is not fulfilled in the quantum mechanical treatment of electromagnetic interaction, which is highlighted in the Aharonov-Bohm effect. I will argue that this standard viewpoint draws some inconsistency with the duality of the Aharonov-Bohm and the Aharonov-Casher effects. An alternative 'local' theory, based on Lorentz-covariant field interaction, has been developed accordingly. Aharonov-Bohm interference without forming a closed path is predicted in this approach, and I will discuss how it can be realized in nanoscale devices.


Kicheon Kang (PhD in Physics, POSTECH 1996) is a professor of Physics at Chonnam National University (CNU), Korea. After several years of postdoctoral research experiences, he was appointed as an assistant professor at CNU in 2003. He was promoted to associate professor in 2007 and to full professor in 2012. He was a visiting scientist at the University of Regensburg in 2010-2011 and at the University of Heidelberg in Sep. 2011 - Feb. 2012. His major research field is condensed matter theory, in particular quantum transport in nanostructures. His recent interest is how fundamental questions in quantum theory, such as the locality and measurement, can be experimentally investigated in nanodevices. He has been serving as an academic coordinator of the Asia Pacific Center for Theoretical Physics. Currently he is a member of council in the Korean Physical Society, an editor of Journal of the Korean Physical Society.

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