Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2009-01-02
Class.Quant.Grav.26:085020,2009
Physics
High Energy Physics
High Energy Physics - Theory
Latex 3 times, 32 pages, typos corrected, to appear in Classical and Quantum Gravity
Scientific paper
10.1088/0264-9381/26/8/085020
We 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.
Lu Hai
Mei Jian-wei
Wang Zhao-Long
No associations
LandOfFree
GL(n,R) Wormholes and Waves in Diverse Dimensions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with GL(n,R) Wormholes and Waves in Diverse Dimensions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GL(n,R) Wormholes and Waves in Diverse Dimensions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-380623