Yf. Smirnov et al., SU(3) realization of the rigid asymmetric rotor within the interacting boson model - art. no. 041302, PHYS REV C, 6104(4), 2000, pp. 1302
It is shown that the spectrum of the asymmetric rotor can be realized quant
um mechanically in terms of a system of interacting bosons. This is achieve
d in the SU(3) limit of the interacting boson model by considering higher-o
rder interactions between the bosons. The spectrum corresponds to that of a
rigid asymmetric rotor in the limit of infinite boson number.