Densities of the white dwarf at different times (frames a–d) while orbiting the black hole along the hyperbolic orbit as in Fig. 6. Here, the Eq. (1) are solved without quantum corrections. The system is unstable and its disruption looks differently than in Fig. 6. The bulk of the white dwarf flows around the black hole rather than it drops on it in pieces, resembling a bit results obtained within the SPH simulations58. The unit of time is \((m_B a_B^2)/\hbar \).