A. Bhagwat

New topological phase transitions in $\kappa$-deformed $\phi^4$ lattice models

This paper explores topological phase transitions in the momentum space of the $\kappa$-deformed $\phi^4$ lattice model within the mean-field approximation. We show that the double-well structure of the momentum space gives rise to degenerate momentum states at high energies and that this change is marked by a phase tr...