Conveners
Session 4
- Alessandro Papa (Istituto Nazionale di Fisica Nucleare)
We compute the topological susceptibility slope $\chi^\prime$, related to the second moment of the two-point correlator of the topological charge density, of $2d$ $\mathrm{CP}^{N-1}$ models for $N=5,11,21$ and $31$ from lattice Monte Carlo simulations. Our strategy consists in performing a double limit: first, we take the continuum limit of $\chi^\prime$ at fixed smoothing radius in physical...
We focus on the computation of the topological susceptibility of $N_f=2+1$ QCD at the physical point for some temperatures above $T_c\simeq155~\mathrm{MeV}$. Topological fluctuations are enhanced by using a multicanonical approach and the susceptibility is computed by adopting the spectral projectors over the eigenmodes of the staggered Dirac operator. This method allows to reduce lattice...
We present and discuss the interplay between local and global symmetries in determining the continuum limit of two-dimensional lattice scalar theories characterized by SO($N_c$) gauge symmetry and non-abelian O($N_f$) global invariance. We argue that, when a quartic interaction is present, the continuum limit of these models may correspond to a gauged non-linear $\sigma$ model field theory...
Since the first years of the 20th century, classical Markov chains have been a standard theoretical tool to model the statistics of a huge plethora of phenomena in physics, economics, biology, etc. Also, they are intensively used for Monte Carlo simulations [1]. The mathematical properties of these stochastic processes have been still studied over the last years because of their broad...
In this talk we present our study of the electromagnetic conductivity in dense quark-gluon plasma obtained within lattice simulations with $N_f = 2 + 1$ dynamical quarks. We employ stout improved rooted staggered quarks at the physical point and the tree-level Symanzik improved gauge action. To reconstruct electromagnetic conductivity from current-current correlators, we employ the modified...
A striking quest for quantum computing applications in available platforms is spanning across a wide range of topics. The framework of lattice gauge theories in the Hamiltonian formulation is tested through a simple quantum system. Limitations in the simulation capabilities are imposed by noise affecting the gates elaboration of quantum states, combined in the decomposition of Trotter...
