56 citations · 317 across the 21 of their papers we have counts for
15 papers · 1 filter
The phase boundary of the random site Ising model
Riccardo Ben Alì Zinati, Giacomo Gori, Alessandro Codello
We introduce a new approach to disordered two-dimensional Ising models based on the extension of the combinatorial solution to randomized supercells. Applying it to the site-dilute…
Critical Temperature(s) of Sierpinski Carpet(s)
Riccardo Ben Alì Zinati, Giacomo Gori, Alessandro Codello
We present a key algorithmic improvement to the generalized combinatorial Feynman--Vdovichenko method for calculating the critical temperature of the Ising model on Sierpinski carp…
Logarithmic negativity of the 1D antiferromagnetic spin-1 Heisenberg model with single-ion anisotropy
Vladimir V. Papoyan, Giacomo Gori, Andrea Trombettoni +1
We study the 1D antiferromagnetic spin-1 Heisenberg XXX model with external magnetic field B and single-ion anisotropy D on finite chains. We determine the nearest and non-nearest…
High-precision anomalous dimension of percolation from giant cluster slicing
Alessandro Galvani, Andrea Trombettoni, Giacomo Gori
We apply the critical geometry approach for bounded critical phenomena [1] to percolation. The functional shape of the order parameter profile is related via the fractiona…
Computation of microcanonical entropy at fixed magnetization without direct counting
Alessandro Campa, Giacomo Gori, Vahan Hovhannisyan +2
We discuss a method to compute the microcanonical entropy at fixed magnetization without direct counting. Our approach is based on the evaluation of a saddle-point leading to an op…
Magnetization profiles at the upper critical dimension as solutions of the integer Yamabe problem
Alessandro Galvani, Giacomo Gori, Andrea Trombettoni
We study the connection between the magnetization profiles of models described by a scalar field with marginal interaction term in a bounded domain and the solutions of the so-call…
Complex networks with tuneable dimensions as a universality playground
Ana P. Millán, Giacomo Gori, Federico Battiston +2
Universality is one of the key concepts in understanding critical phenomena. However, for interacting inhomogeneous systems described by complex networks a clear understanding of t…
Ising chains with competing interactions in presence of long-range couplings
Alessandro Campa, Giacomo Gori, Vahan Hovhannisyan +2
In this paper we study an Ising spin chain with short-range competing interactions in presence of long-range ferromagnetic interactions in the canonical ensemble. The simultaneous…
Geometry of bounded critical phenomena
Giacomo Gori, Andrea Trombettoni
We devise a geometric description of bounded systems at criticality in any dimension . This is achieved by altering the flat metric with a space dependent scale factor , $…
Four-point boundary connectivities in critical two-dimensional percolation from conformal invariance
Giacomo Gori, Jacopo Viti
We conjecture an exact form for an universal ratio of four-point cluster connectivities in the critical two-dimensional -color Potts model. We also provide analogous results for…
Exact logarithmic four-point functions in the critical two-dimensional Ising model
Giacomo Gori, Jacopo Viti
Based on conformal symmetry we propose an exact formula for the four-point connectivities of FK clusters in the critical Ising model when the four points are anchored to the bounda…
One-dimensional long-range percolation: a numerical study
G. Gori, M. Michelangeli, N. Defenu +1
In this paper we study bond percolation on a one-dimensional chain with power-law bond probability , where is the distance length between distinct sites. We introdu…
Conformal invariance in three dimensional percolation
G. Gori, A. Trombettoni
The aim of the paper is to present numerical results supporting the presence of conformal invariance in three dimensional statistical mechanics models at criticality and to elucida…
Explicit Hamiltonians Inducing Volume Law for Entanglement Entropy in Fermionic Lattices
Giacomo Gori, Simone Paganelli, Auditya Sharma +2
We show how the area law for the entanglement entropy may be violated by free fermions on a lattice and look for conditions leading to the emergence of a volume law. We give an exp…
Inverse Ising problem for one-dimensional chains with arbitrary finite-range couplings
Giacomo Gori, Andrea Trombettoni
We study Ising chains with arbitrary multispin finite-range couplings, providing an explicit solution of the associated inverse Ising problem, i.e. the problem of inferring the val…