[1102.3434] Detecting Vanishing Dimensions Via Primordial Gravitational Wave Astronomy

Authors: Jonas R. Mureika, Dejan Stojkovic

Date: 16 Feb 2011

Abstract: Lower-dimensionality at higher energies has manifold theoretical advantages as recently pointed out. Moreover, it appears that experimental evidence may already exists for it - a statistically significant planar alignment of events with energies higher than TeV has been observed in some earlier cosmic ray experiments. We propose a robust and independent test for this new paradigm. Since (2+1)-dimensional spacetimes have no gravitational degrees of freedom, gravity waves cannot be produced in that epoch. This places a universal maximum frequency at which primordial waves can propagate, marked by the transition between dimensions. We show that this cut-off frequency may be accessible to future gravitational wave detectors such as LISA.

abs pdf

Feb 20, 2011

1102.3434 (/preprints)
2011-02-20, 10:28 [edit]

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Tantum in modicis, quantum in maximis