The Mixmaster Universe in Five Dimensions
نویسندگان
چکیده
منابع مشابه
The mixmaster universe: A chaotic Farey tale
When gravitational fields are at their strongest, the evolution of spacetime is thought to be highly erratic. Over the past decade debate has raged over whether this evolution can be classified as chaotic. The debate has centered on the homogeneous but anisotropic mixmaster universe. A definite resolution has been lacking as the techniques used to study the mixmaster dynamics yield observer dep...
متن کاملSmooth “creation” of an open universe in five dimensions
We present a non-singular instanton describing the creation of an open universe with a compactified extra dimension. The four dimensional section of this solution is a singular instanton of the type introduced by Hawking and Turok. The “singularity” is viewed in five dimensions as a smooth bubble of “nothing” which eats up a portion of spacetime as it expands. Flat space with a compact extra di...
متن کامل- qc / 0 20 70 56 v 1 1 5 Ju l 2 00 2 The Mixmaster Universe in Five Dimensions Paul
We consider a five dimensional vacuum cosmology with Bianchi type-IX spatial geometry and an extra non-compact coordinate. Finding a new class of solutions, we examine and rule out the possibility of deterministic chaos. We interpret this result within the context of induced matter theory.
متن کاملExtra Dimensions in the Early Universe
We investigate the possible occurrence of extra spatial dimensions (D = 3 + ǫ) in the early universe. A detailed calculation is presented which shows that the crucial signal is the apparent inequality of the cosmological Z-term between matching Lyman alpha (Lyα) and Lyman beta (Lyβ) spectral lines, both emission and absorption, when using the present epoch (laboratory) wavelengths. We present p...
متن کاملTheories in Five Dimensions
BPS and non-BPS orbits for extremal black-holes in N = 2 MaxwellEinstein supergravity theories (MESGT) in five dimensions were classified long ago by the present authors for the case of symmetric scalar manifolds. Motivated by these results and some recent work on non-supersymmetric attractors we show that attractor equations in N=2 MESGTs in d = 5 do indeed possess the distinct families of sol...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: General Relativity and Gravitation
سال: 2003
ISSN: 0001-7701,1572-9532
DOI: 10.1023/a:1022341026460