B. Hetenyi, M. H. Müser, and B. J. Berne,
Second-order reentrant phase transition in the quantum anisotropic planar rotor model,
Phys. Rev. Lett. 83, 4606 (1999).
B. Hetenyi, M. H. Müser, and B. J. Berne,
Second-order reentrant phase transition in the quantum anisotropic planar rotor model,
Phys. Rev. Lett. 83, 4606 (1999).