%0 Electronic Article
%A Gharibyan, Vahagn
%A Balewski, Klaus
%T Planck-scale Gravity test at PETRA - Letter of Intent
%N arXiv:1602.06251
%M PUBDB-2016-03273
%M arXiv:1602.06251
%M DESY-16-029
%D 2016
%X Quantum or torsion gravity models predict unusual properties of space-time at very short distances. In particular, near the Planck length, around 10<sup>−35</sup>m, empty space may behave as a crystal, singly or doubly refractive. This hypothesis, however, remains uncheckable for any direct measurement since the smallest distance accessible in experiment is about 10<sup>−19</sup>m at the LHC. Here we propose a laboratory test to measure space birefringence or refractivity induced by gravity. A sensitivity 10<sup>−31</sup>m for doubly and 10<sup>−28</sup>m for singly refractive vacuum could be reached with PETRA 6 GeV beam exploring UV laser Compton scattering.
%K DESY PETRA Stor (autogen)
%K gravitation (autogen)
%K torsion (autogen)
%F PUB:(DE-HGF)25 ; PUB:(DE-HGF)29
%9 PreprintReport
%U https://bib-pubdb1.desy.de/record/307562