Seminarium "Modeling of Complex Systems"

One thrust of my talk will be to explore how Casimir (van der Waals) energies potentially impact geophysical systems such as the buoyancy of CO2 gas hydrate clusters in the ocean on Enceladus (moon on Saturn) and the chemical composition of the E-ring of Saturn. Notably, Casimir effects have been indicated to have a role on water condensation on soil particles and on forces between surfaces. As the main reason for giving this talk is to explore potential collaborations with researchers from University of Warsaw I will try to give a broad overview of my work. My NCN funded Polonez bis-3 project at Ensemble3 (Warsaw) is approaching its end so I also want to highlight some of the research achievements from my team. One example system that I will discuss is our work enabling tuning of Casimir attraction/repulsion transitions between a polystyrene sphere (e.g., freely levitating or attached to an atomic force microscope tip) near a Teflon surface in a magnetic fluid mixture. Notably, the stable and measurable trapping distances can be manipulated by several orders of magnitude entirely by changing the zero-frequency transverse electric contributions to the Casimir force. In the past, this magnetic contribution to the Casimir-induced trapping has not been studied separately.

The seminar will be held in hybrid mode: in room 1.40 (IPC PAS) Join Zoom Meetinghttps://uw-edu-pl.zoom.us/j/96378632993?pwd=MVgdPR80oKaE4pjLufb2NCtg6ql4Ax.1Meeting ID: 963 7863 2993Passcode: 569551During the seminar the coffee and cakes are provided. The abstract of the talk is given below.