We have the pleasure to invite you to the Particle Theory Seminar on Tuesday,
October 19 at 12:15:
Speaker: Dr Victor Ambrus (West University of Timişoara and Univ. of Frankfurt)
Title: Helical effects for thermal fermions
Abstract: Recent evidence from relativistic heavy ion collisions (HIC)
experiments confirmed the global significance of the vorticity to
polarisation transfer through the spin-orbit coupling predicted by the
Dirac equation. A well-known example is the Chiral vortical effect (CVE)
linking the flow of chirality to the local medium vorticity. This talk
focusses on the novel helical vortical effect (HVE), which predicts also
a flow of helicity. Used together, the CVE and HVE constitute a
promising tool to analyze the polarization asymmetry between matter and
anti-matter observed in lower-energy collisions. The thermodynamical
modelling of helicity imbalance through the helicity chemical potential
is proposed and its impact on wave-like excitations (the
Helical-vortical wave) and the QCD phase diagram is discussed.
Seminar will take place in the seminar room D-2-02, however, we plan to have it
in hybrid mode. People interested in the on-line participation are kindly
requested to let us know by email and we will send zoom coordinates.