Search

We discuss new transport phenomena in the presence of both a strong magnetic field and a vortex field. Their interplay induces a charge distribution and a current along the magnetic field. We show that the associated transport coefficients can be obtained from a simple analysis of the single-particle distribution functions and also from the Kubo formula calculation. The consistent results from these analyses suggest that the transport coefficients are tied to the chiral anomaly in the ( 1 + 1 ) dimension because of the dimensional reduction in the lowest Landau levels. [ABSTRACT FROM AUTHOR]

Abstract Hydrodynamic fluctuations are found to be important in many situations such as cosmology, condensed matter system and heavy-ion collisions. Recently, an effective field theory for fluctuating dissipative hydrodynamics has been developed in 1511.03646 and 1701.07817. We apply this theory to investigate nontrivial consequences of hydrodynamic fluctuations on the Bjorken expanding quark gluon plasma (QGP). In particular, we explore nontrivial effects due to interactions among hydrodynamical variables and noises which are systematically incorporated in the present framework but are not fully captured in conventional approaches. [ABSTRACT FROM AUTHOR]

We generalize and apply the key elements of the Kibble-Zurek framework of nonequilibrium phase transitions to study the non-equilibrium critical cumulants near the QCD critical point. We demonstrate that the off-equilibrium critical cumulants are expressible as universal scaling functions. We discuss how to use off-equilibrium scaling to provide powerful model-independent guidance in searches for the QCD critical point. [ABSTRACT FROM AUTHOR]

Chiral anomaly induces a new kind of macroscopic quantum behavior in relativistic magnetohydrodynamics, including the chiral magnetic effect. In this talk we present two new quantum effects present in fluids that contain charged chiral fermions: 1) the turbulent inverse cascade driven by the chiral anomaly; 2) quantized chiral magnetic current induced by the reconnections of magnetic flux. We also discuss the implications for the evolution of the quark-gluon plasma produced in heavy ion collisions. [ABSTRACT FROM AUTHOR]

In this contribution we report a recently developed Anomalous-Viscous Fluid Dynamics (AVFD) framework, which simulates the evolution of fermion currents in QGP on top of the bulk expansion from data-validated VISHNU hydrodynamics. With reasonable estimates of initial conditions and magnetic field lifetime, the predicted CME signal is quantitatively consistent with change separation measurements in 200GeV Au-Au collisions at RHIC. We further develop the event-by-event AVFD simulations that allow direct evaluation of two-particle correlations arising from CME signal as well as the non-CME backgrounds. Finally we report predictions from AVFD simulations for the upcoming isobaric (Ru-Ru v.s. Zr-Zr ) collisions that could provide the critical test of the CME in heavy ion collisions. [ABSTRACT FROM AUTHOR]

The recently formulated Hydro+ framework describes the interplay between hydrodynamics and out-of-equilibrium long wavelength critical fluctuations in a self-consistent fashion. We present a brief summary of the first simulation of Hydro+ in a simplified model for a heavy ion collision: a boost-invariant fireball undergoing radial flow, see Ref. [K. Rajagopal, G. Ridgway, R. Weller and Y. Yin, arXiv:1908.08539 [hep-ph].] for details. Within our simplified model, we find three key ingredients of critical dynamics at play: 1) the dynamical fluctuations lag relative to the equilibrium expectation as the fluid cools and flows; 2) the radial flow transports fluctuations by advection; 3) the out-of-equilibrium fluctuations in turn back-react on the bulk evolution. [ABSTRACT FROM AUTHOR]