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Open Quantum Systems Decoherence

Gravity gradient suppression in spaceborne atomic tests of the equivalence principle

arXiv
Authors: Sheng-wey Chiow, Jason Williams, Nan Yu, Holger Müller

Year

2016

Paper ID

41993

Status

Preprint

Abstract Read

~2 min

Abstract Words

100

Citations

N/A

Abstract

The gravity gradient is one of the most serious systematic effects in atomic tests of the equivalence principle (EP). While differential acceleration measurements performed with different atomic species under free fall test the validity of EP, minute displacements between the test masses in a gravity gradient produces a false EP-violating signal that limits the precision of the test. We show that gravity inversion and modulation using a gimbal mount can suppress the systematics due to gravity gradients caused by both moving and stationary parts of the instrument as well as the environment, strongly reducing the need to overlap two species.

Why This Paper Matters

  • This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
  • It adds a 2016 reference point for readers tracking recent quantum research.
  • The gravity gradient is one of the most serious systematic effects in atomic tests of the equivalence principle (EP).

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1612.02053 [2] arXiv https://arxiv.org/abs/1612.02053 [3] Publisher https://arxiv.org/abs/1612.02053

Local Citation Graph (Related-Paper Links)

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