3 papers
hep-lat2026
Monte Carlo reconstruction of symmetry-twisted partition function ratios: the critical 3D Ising
José Matos
We introduce a Monte Carlo strategy for directly estimating partition function ratios between distinct global sectors of a lattice theory. It enlarges the configuration space to sa…
hep-th2026
Effective strings and particles interacting in 3D: the Ising model
J. M. Viana Parente Lopes, José Matos, Joao Penedones
We study how a fluctuating domain wall in three dimensions modifies bulk observables in a gapped phase. We introduce an effective interaction between the wall and the lightest bulk…
hep-th2025
Effective string theory on a torus: the 3d Ising domain wall
David Lima, J. M. Viana Parente Lopes, Jose Matos +1
We use effective string theory (EST) to describe a toroidal 2d domain wall embedded in a 3d torus. In particular, we compute the free energy of the domain wall in an expansion in i…