[en] We calculate the squeezed back-to-back correlation (BBC) functions of φφ and K"+K"- for heavy-ion collisions at RHIC and LHC energies, using (2 + 1)-dimensional hydrodynamics with fluctuating initial conditions. The BBC functions averaged over event-by-event calculations for many events for the hydrodynamic sources are smoothed as a function of the particle momentum. For heavy-ion collisions of Au + Au at √(S_N_N) = 200 GeV, the BBC functions are larger than those for collisions of Pb + Pb at √(S_N_N) = 2.76 TeV. The BBC of φφ may possibly be observed in peripheral collisions at the RHIC and LHC energies. It is large for the smaller sources of Cu + Cu collisions at √(S_N_N) = 200 GeV. (orig.)