Wang, C.L.; Arago, C.; Garcia, J.; Gonzalo, J.A. - In: Physica A: Statistical Mechanics and its Applications 308 (2002) 1, pp. 337-345
The Ising model in a transverse field, which involves quantum tunneling in double potential wells, has been used for many years to describe ferroelectric phase transitions. An alternative model previously published takes into account the effect of a non-negligible zero-point energy in the double...