It is well known that quantum effects may lead to removal of the intrinsic singularity point of back holes. Also, the quintessence scalar field is a candidate model for describing late-time acceleration expansion. Accordingly, Kazakov and Solodukhin considered the existence of back-reaction of the spacetime due to the quantum fluctuations of the background metric to deform a Schwarzschild black hole, which led to a change of the intrinsic singularity of the black hole to a 2-sphere with a radius of the order of the Planck length. Also, Kiselev rewrote the Schwarzschild metric by taking into account the quintessence field in the background. In this study, we consider the quantum-corrected Schwarzschild black hole inspired by Kazakov–Solodukhin’s work, and the Schwarzschild black hole surrounded by quintessence deduced by Kiselev to study the mutual effects of quantum fluctuations and quintessence on the accretion onto the black hole. Consequently, the radial component of the 4-velocity and the proper energy density of the accreting fluid have a finite value on the surface of its central 2-sphere due to the presence of quantum corrections. Also, by comparing the accretion parameters in different kinds of black holes, we infer that the presence of a point-like electric charge in the spacetime is somewhat similar to some quantum fluctuations in the background metric.

众所周知，量子效应可能导致去除背孔的固有奇点。同样，典型标量场是用于描述后期加速扩展的候选模型。因此，Kazakov和Solodukhin认为由于背景量度的量子涨落使Schwarzschild黑洞变形而导致时空存在背向反应，从而导致黑洞的固有奇异性变为具有普朗克长度量级的半径。同样，Kiselev通过考虑背景中的精粹场来重写了Schwarzschild度量。在这项研究中，我们考虑了由Kazakov–Solodukhin的工作启发而来的量子校正Schwarzschild黑洞，以及由基瑟列夫（Kiselev）推导的被精华包围的Schwarzschild黑洞，研究了量子涨落和精华对黑洞上吸积的相互影响。因此，由于存在量子校正，4速度的径向分量和吸积流体的适当能量密度在其中心2球的表面上具有有限值。同样，通过比较不同种类黑洞中的吸积参数，我们推断时空中存在点状电荷有点类似于背景量度中的一些量子涨落。由于存在量子校正，4速度的径向分量和吸积流体的适当能量密度在其中心2球的表面上具有有限值。同样，通过比较不同种类黑洞中的吸积参数，我们推断时空中存在点状电荷有点类似于背景量度中的一些量子涨落。由于存在量子校正，4速度的径向分量和吸积流体的适当能量密度在其中心2球的表面上具有有限值。同样，通过比较不同种类黑洞中的吸积参数，我们推断时空中存在点状电荷有点类似于背景量度中的一些量子涨落。