000310565 001__ 310565 000310565 005__ 20250717104908.0 000310565 0247_ $$2doi$$a10.4236/jmp.2016.79088 000310565 0247_ $$2ISSN$$a2153-1196 000310565 0247_ $$2ISSN$$a2153-120X 000310565 0247_ $$2arXiv$$aarXiv:1602.06251 000310565 0247_ $$2inspire$$ainspire:1478657 000310565 0247_ $$2altmetric$$aaltmetric:5908306 000310565 0247_ $$2openalex$$aopenalex:W3125557903 000310565 037__ $$aPUBDB-2016-04302 000310565 041__ $$aEnglish 000310565 082__ $$a530 000310565 0881_ $$aDESY-16-029 000310565 088__ $$2DESY$$aDESY-16-029 000310565 1001_ $$0P:(DE-H253)PIP1004537$$aGharibyan, Vahagn$$b0$$eCorresponding author 000310565 245__ $$aPlanck-Scale Gravity Test at PETRA 000310565 260__ $$aIrvine, Calif.$$bScientific Research Publ.$$c2016 000310565 3367_ $$2DRIVER$$aarticle 000310565 3367_ $$2DataCite$$aOutput Types/Journal article 000310565 3367_ $$0PUB:(DE-HGF)29$$2PUB:(DE-HGF)$$aReport$$mreport 000310565 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1494425423_20592 000310565 3367_ $$2BibTeX$$aARTICLE 000310565 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000310565 3367_ $$00$$2EndNote$$aJournal Article 000310565 520__ $$aQuantum or torsion gravity models predict unusual properties of spacetime at very short distances. In particular, near the Planck length, around 10$^{−35}$ 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$^{−19}$ m at the LHC. Here we propose a laboratory test to measure space birefringence or refractivity induced by gravity. 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