GL(n,R) Wormholes and Waves in Diverse Dimensions

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dc.creatorWang, Zhao-Long
dc.creatorMei, Jianwei
dc.creatorLu, H.
dc.date2009-01-02
dc.date2009-03-29
dc.date.accessioned2026-07-07T13:04:50Z
dc.date.available2026-07-07T13:04:50Z
dc.descriptionWe construct the most general Ricci-flat metrics in (D+n) dimensions that preserve the R^{1,n-1}\times SO(D) isometry. The equations of motion are governed by the system of a GL(n,\R)/SO(1,n-1) scalar coset coupled to D-dimensional gravity. Among the solutions, we find a large class of smooth Lorentzian wormholes that connect two asymptotic flat spacetimes. In addition, we obtain new vacuum tachyonic wave solutions in D\ge 4 dimensions, which fit the general definition of pp-waves in that there exists a covariantly constant null vector. The momenta of the tachyon waves are larger than their ADM masses. The world-volume of the tachyon wave is R^{1,2}, instead of R^{1,1} for the usual vacuum pp-wave. We show that the tachyon wave solutions admit no Killing spinors, except in D=4, in which case it preserves half of the supersymmetry. We also obtain a general class of p-brane wormhole and tachyon wave solutions where the R^{1,n-1} part of the spacetime lies in the the world-volume of the p-branes. These include examples of M-branes and D3-brane. Furthermore, we obtain AdS tachyon waves in D\ge 4 dimensions.
dc.descriptionLatex 3 times, 32 pages, typos corrected, to appear in Classical and Quantum Gravity
dc.identifierhttps://arxiv.org/abs/0901.0003
dc.identifierhttp://arxiv.org/abs/0901.0003
dc.identifierClass.Quant.Grav.26:085020,2009
dc.identifierdoi:10.1088/0264-9381/26/8/085020
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/227307
dc.subjectHigh Energy Physics - Theory
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleGL(n,R) Wormholes and Waves in Diverse Dimensions
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