activity
20092026
most citedOriginal electric-vertex formulation of the symmetric eight-vertex model on the square lattice is fully non-universal

4 citations · 5 across the 5 of their papers we have counts for

collaborators

5 papers

cond-mat.str-el2026

Spin modulations in the Rashba-Hubbard chain -- a tensor network study

Jozef Genzor, Roman Krčmár, Andrej Gendiar +2

Uniform spin-orbit coupling in an open single-band Hubbard chain is an exactly removable \(SU(2)\) gauge field at the Hamiltonian level, but not at the level of laboratory-frame sp…

quant-ph2026

Entanglement-entropy analysis of critical and topological quantum phases in a frustrated spin-1/2 Heisenberg ladder

Azadeh Ghannadan, Hana Vargová, Jozef Genzor +2

We investigate the ground-state phase diagram of a frustrated spin-1/2 Heisenberg ladder in the transverse magnetic field with an anisotropic inter-rung exchange coupling . This…

cond-mat.stat-mech2025

Phase Transition of the Ising Model on a 3-Dimensional Fractal Lattice

Jozef Genzor, Roman Krčmár, Hiroshi Ueda +3

The critical behavior of the classical Ising model on a three-dimensional fractal lattice with Hausdorff dimension is investigated using the higher-order…

cond-mat.stat-mech2017★ 4 cited

Original electric-vertex formulation of the symmetric eight-vertex model on the square lattice is fully non-universal

Roman Krčmár, Ladislav Šamaj

The partition function of the symmetric (zero electric field) eight-vertex model on a square lattice can be formulated either in the original "electric" vertex format or in an equi…

cond-mat.mes-hall2009★ 1 cited

Persistent current of Luttinger liquid in one-dimensional ring with weak link: Continuous model studied by configuration interaction and quantum Monte Carlo

R. Németh, M. Moško, R. Krčmár +3

We study the persistent current of correlated spinless electrons in a continuous one-dimensional ring with a single weak link. We include correlations by solving the many-body Schr…