The experimental observation of a clear quantum signature of gravity is believed to be out of the grasp of current technology. However, several recent promising proposals to test the possible existence of non-classical features of gravity seem to be accessible by the state-of-art table-top experiments. Among them, some aim at measuring the gravitationally induced entanglement between two masses which would be a distinct non-classical signature of gravity. We explicitly study, in two of these proposals, the effects of decoherence on the system’s dynamics by monitoring the corresponding degree of entanglement. We identify the required experimental conditions necessary to perform successfully the experiments. In parallel, we account also for the possible effects of the continuous spontaneous localization (CSL) model, which is the most known among the models of spontaneous wavefunction collapse. We find that any value of the parameters of the CSL model would completely hinder the generation of gravitationally induced entanglement.

对引力的清晰量子特征的实验观察被认为是当前技术无法掌握的。然而，最近几项测试非经典重力特征可能存在的有希望的提议似乎可以通过最先进的桌面实验获得。其中，一些旨在测量两个质量之间的引力引起的纠缠，这将是一个明显的非经典引力特征。我们在其中两个提案中明确研究了退相干对系统动力学的影响，通过监测相应的纠缠程度。我们确定了成功执行实验所需的实验条件。同时，我们还考虑了连续自发定位 (CSL) 模型的可能影响，这是自发波函数坍缩模型中最著名的。我们发现 CSL 模型参数的任何值都会完全阻碍引力诱导纠缠的产生。