Atom-Based Test of the Equivalence Principle

Details Atom-Based Test of the Equivalence Principle Atom-Based Test of the Equivalence Principle

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ssrv..148..225f&link_type=abstract

Space Science Reviews, Volume 148, Issue 1-4, pp. 225-232

Computer Science

Quantum Mechanics, Gravity, Equivalence Principle, Atom Interferometer

Scientific paper

We describe a test of the equivalence principle with quantum probe particles based on atom interferometry. For the measurement, a light pulse atom interferometer based on the diffraction of atoms from effective absorption gratings of light has been developed. A differential measurement of the Earth’s gravitational acceleration g for the two rubidium isotopes 85Rb and 87Rb has been performed, yielding a difference Δ g/ g=(1.2±1.7)×10-7. In addition, the dependence of the free fall on the relative orientation of the electron to the nuclear spin was studied by using atoms in two different hyperfine states. The determined difference in the gravitational acceleration is Δ g/ g=(0.4±1.2)×10-7. Within their experimental accuracy, both measurements are consistent with a free atomic fall that is independent from internal composition and spin orientation.

Affiliated with

Also associated with

No associations

Rating

Atom-Based Test of the Equivalence Principle does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Atom-Based Test of the Equivalence Principle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Atom-Based Test of the Equivalence Principle will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1710738