Optomechanical tests of a Schrödinger-Newton equation for gravitational quantum mechanics

C. C. Gan, C. M. Savage, S. Z. Scully

    Research output: Contribution to journalArticlepeer-review

    22 Citations (Scopus)


    We show that optomechanical systems can test the Schrödinger-Newton equation of gravitational quantum mechanics due to Yang et al. Phys. Rev. Lett. 110, 170401 (2013). This equation is motivated by semiclassical gravity, a widely used theory of interacting gravitational and quantum fields. From the many-body Schrödinger-Newton equation follows an approximate equation for the center-of-mass dynamics of macroscopic objects. This predicts a distinctive double-peaked signature in the output optical quadrature power spectral density of certain optomechanical systems. Since the Schrödinger-Newton equation lacks free parameters, these will allow its experimental confirmation or refutation.

    Original languageEnglish
    Article number124049
    JournalPhysical Review D
    Issue number12
    Publication statusPublished - 20 Jun 2016


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