Chirality effects in Casimir-Lifshitz torque for birefringent multilayer systems

报告题目:Chirality effects in Casimir-Lifshitz torque for birefringent multilayer systems

报告人:Rudolf Podgornik 教授, 中国科学院大学(UCAS)

报告时间:2024125日,周四,下午 1400



报告摘要:Casimir-Lifshitz interactions are macroscopic dispersion forces that arise from quantum mechanical and thermal fluctuations of the electromagnetic field. The name “dispersion forces” originates from the fact that their properties are governed by the dielectric and magnetic dispersion of the interacting materials. Casimir-Lifshitz forces share the same physical origin as the van der Waals–London forces, which conventionally denote the interaction in cases where retardation effects are negligible. The presence of anisotropies, either in the susceptibilities or the morphological anisotropy induced by the shape of the interacting bodies, implies the existence of not only forces but also Casimir-Lifshitz torques between the interacting bodies. I will describe recent results to analyze the Casimir-Lifshitz forces and torques between two semi-infinite and/or finite homochiral or heterochiral layers and thus quantify macroscopically the effects of chirality.

报告人简介:Rudolf Podgornik is Chair professor at the School of Physical Sciences, University of Chinese Academy of Sciences (UCAS), Beijing and professor at the Kavli Institute for Theoretical Sciences (KITS) at the University of Chinese Academy of Sciences, Beijing. He is the Foreign expert in the 1000 talents program of the Chinese government at the University of Chinese Academy of Sciences in Beijing. He is also professor of physics at the Physics Department, Faculty of Mathematics and Physics, University of Ljubljana and professor of biophysics at the Medical Faculty, University of Ljubljana. He is also the head of the research program Biophysics of polymers, membranes, gels, colloids and cells, financially supported by the Slovene Agency for Research and Development (ARRS) and a member of the Theoretical Physics Department at the Jozef Stefan Institute in Ljubljana. Until 2010 he was an adjunct researcher at the National Institutes of Health, Bethesda, MD. From 2011 to 2016 he was also adjunct professor at the Physics Department, University of Massachusetts, Amherst and from 2013 to 2017 an adjunct professor at the Materials Science & Engineering Department at the Case Western Reserve University, Cleveland. He is a coeditor-in-chief of the Journal of Biological Physics, published by Springer, a member of the Editorial board of the journal Scientific Reports published by Nature-Springer and an Advisory Editor of the European Biophysics Journal (EBJ) published by Springer Nature on behalf of the European Biophysical Societies Association (EBSA).