# Macroscopic quantum mechanics in a classical spacetime.

@article{Yang2013MacroscopicQM, title={Macroscopic quantum mechanics in a classical spacetime.}, author={Huan Yang and Haixing Miao and Da-Shin Lee and Bassam Helou and Yanbei Chen}, journal={Physical review letters}, year={2013}, volume={110 17}, pages={ 170401 } }

We apply the many-particle Schrödinger-Newton equation, which describes the coevolution of a many-particle quantum wave function and a classical space-time geometry, to macroscopic mechanical objects. By averaging over motions of the objects' internal degrees of freedom, we obtain an effective Schrödinger-Newton equation for their centers of mass, which can be monitored and manipulated at quantum levels by state-of-the-art optomechanics experiments. For a single macroscopic object moving…

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