SM&FT 2017 - The XVII Workshop on Statistical Mechanics and nonpertubative Field Theory

Session

Session 7

14 Dec 2017, 14:30

Centro Polifunzionale UniBA

Conveners

Session 7

• Sebastiano Stramaglia (BA)

59. Modeling gravitational-waves from binary neutron stars

Sebastiano Bernuzzi (PR)

14/12/2017, 14:30

The era of multi-messenger astronomy has started with the first observation of gravitational and electromagnetic radiation from a likely binary neutron star inspiral event. A single event delivered information about the unknown equation of state of matter at supranuclear densities, about the connection between mergers and short-gamma ray burst, about the site of production (via r-process...

60. Transient spiral arms and galaxy rotation curves

Dr francesco sylos labini (centro e. fermi)

14/12/2017, 15:10

We describe how a simple class of out of equilibrium, rotating and asymmetrical mass distributions evolve under their self-gravity to produce a quasi-planar spiral structure surrounding a virialized core, qualitatively resembling a spiral galaxy. The spiral structure is transient, but can survive tens of dynamical times, and further reproduces qualitatively noted features of spiral galaxies as...

50. The curvature of the chiral pseudocritical line from lattice QCD

Francesco Negro (PI)

14/12/2017, 15:30

The $T-\mu$ phase diagram of QCD is still largely unknown. However, by means of lattice QCD simulations, it is possible to reliably study the region close to the $\mu=0$ axis and in particular the behaviour of the chiral transition in this regime. I will present our determination of the curvature of the chiral pseudocritical line from $N_f=2+1$ lattice QCD at the physical point. I will mainly...

45. The QCD chiral phase transition from non-integer numbers of flavors

Dr Francesca Cuteri (Goethe Universität - Frankfurt am Main)

14/12/2017, 15:50

Attempts to extract the order of the chiral transition of QCD at zero chemical potential, with two dynamical flavors of massless quarks, from simulations with progressively decreasing pion mass have remained inconclusive because of their increasing numerical cost. In an alternative approach to this problem, we consider the path integral as a function of continuous number $N_f$ of degenerate...

36. Complex Langevin simulations of a finite density matrix model for QCD

Dr Savvas Zafeiropoulos (Universität Heidelberg)

14/12/2017, 16:10

We study the Stephanov model, which is a Random Matrix Theory model for QCD at finite baryon density, using the Complex Langevin algorithm. Naive implementation of the algorithm shows convergence towards the phase quenched or quenched theory rather than to the intended theory with dynamical quarks. A detailed analysis of this issue and various potential resolutions of the failure of this...