Investigation on Planck scale physics by the AURIGA gravitational bar detector

Year: 2014

Authors: Marin F., Marino F., Bonaldi M., Cerdonio M., Conti L., Falferi P., Mezzena R., Ortolan A., Prodi G.A., Taffarello L., Vedovato G., Vinante A., Zendri J.P.

Autors Affiliation: Dipartimento di Fisica e Astronomia, Università di Firenze, Sesto Fiorentino (FI), Italy; Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Firenze, SestoFiorentino (FI), Italy; European Laboratory for Non-Linear Spectroscopy (LENS), Sesto Fiorentino (FI), Italy; CNR-INO, largo Enrico Fermi 6, I-50025 Firenze, Italy; Institute of Materials for Electronics and Magnetism, Nanoscience – Trento – FBK Division, Trento, Italy; INFN-TIFPA, Povo, Trento, Italy; INFN, Sezione di Padova, via Marzolo 8, Padova, Italy; Istituto di Fotonica e Nanotecnologie, CNR—Fondazione Bruno Kessler, Povo, Trento, Italy; Dipartimento di Fisica, Università di Trento, Povo, Trento, Italy; INFN, Laboratori Nazionali di Legnaro, Legnaro (PD), Italy

Abstract: We have recently shown that the very low mechanical energy achieved and measured in the main vibration mode of gravitational wave bar detectors can set an upper limit to possible modifications of the Heisenberg uncertainty principle that are expected as an effect of gravity. Here we give more details on the data analysis procedure that allows one to deduce the energy of the bar mode (i.e., the meaningful parameter for our purpose). Furthermore, we extend the analysis of our results, discussing their implication for physical models that face quantum gravity from different points of view, e. g., proposing modified commutation relations or exploring spacetime discreteness.


Volume: 16      Pages from: 085012  to: 085012

KeyWords: Planck scale; Gravitational wave detectors;
DOI: 10.1088/1367-2630/16/8/085012

Citations: 16
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