Weak Equivalence Principle Test on a Sounding Rocket
James D. Phillips, Bijunath R. Patla, Eugeniu M. Popescu, Emanuele, Rocco, Rajesh Thapa, Robert D. Reasenberg, Enrico C. Lorenzini
TL;DR
This paper discusses the SR-POEM experiment on a sounding rocket designed to test the Weak Equivalence Principle with unprecedented precision, involving advanced laser gauge technology and detailed project planning.
Contribution
It introduces a novel experimental setup for testing the Weak Equivalence Principle with a target uncertainty of 10^-16, including technological innovations like a self-aligning laser gauge.
Findings
Design concept has matured over two years.
Development of a laser gauge reaching 0.1 pm/√Hz.
Ongoing plans and status update for the experiment.
Abstract
SR-POEM, our principle of equivalence measurement on a sounding rocket, will compare the free fall rate of two substances yielding an uncertainty of E-16 in the estimate of \eta. During the past two years, the design concept has matured and we have been working on the required technology, including a laser gauge that is self aligning and able to reach 0.1 pm per root hertz for periods up to 40 s. We describe the status and plans for this project.
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