Sensing short range forces with a nanosphere matter-wave interferometer

Andrew Geraci, Hart Goldman

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


We describe a method for sensing short range forces using matter-wave interference in dielectric nanospheres. When compared with atom interferometers, the larger mass of the nanosphere results in reduced wave-packet expansion, enabling investigations of forces nearer to surfaces in a free-fall interferometer. By laser cooling a nanosphere to the ground state of an optical potential and releasing it by turning off the optical trap, acceleration sensing at the 10-8m/s2 level is possible. The approach can yield improved sensitivity to Yukawa-type deviations from Newtonian gravity at the 5μm length scale by a factor of 104 over current limits.

Original languageEnglish (US)
Article number062002
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number6
StatePublished - Sep 11 2015

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)


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