Statistical entropy of de Sitter space
نویسندگان
چکیده
منابع مشابه
Statistical Entropy of De Sitter Space
Quantum gravity in 2+1 dimensions with a positive cosmological constant can be represented as an SL(2,C) Chern-Simons gauge theory. The symmetric vacuum of this theory is a degenerate configuration for which the gauge fields and spacetime metric vanish, while de Sitter space corresponds to a highly excited thermal state. Carlip’s approach to black hole entropy can be adapted in this context to ...
متن کاملSpacelike hypersurfaces with constant $S$ or $K$ in de Sitter space or anti-de Sitter space
Let $M^n$ be an $n(ngeq 3)$-dimensional complete connected and oriented spacelike hypersurface in a de Sitter space or an anti-de Sitter space, $S$ and $K$ be the squared norm of the second fundamental form and Gauss-Kronecker curvature of $M^n$. If $S$ or $K$ is constant, nonzero and $M^n$ has two distinct principal curvatures one of which is simple, we obtain some charact...
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By introducing the generalized uncertainty principle on the quantum state density, we calculate the statistical entropy of a scalar field on the background of three-dimensional de Sitter space without artificial cutoff. The desired entropy proportional to the horizon perimeter is obtained. PACS: 04.70.Dy, 04.62.+v, 97.60.Lf
متن کاملCan Quantum de Sitter Space Have Finite Entropy?
If one tries to view de Sitter as a true (as opposed to a meta-stable) vacuum, there is a tension between the finiteness of its entropy and the infinite-dimensionality of its Hilbert space. We invetsigate the viability of one proposal to reconcile this tension using q-deformation. After defining a differential geometry on the quantum de Sitter space, we try to constrain the value of the deforma...
متن کاملConformal Vacua and Entropy in de Sitter Space
The dS/CFT correspondence is illuminated through an analysis of massive scalar field theory in d-dimensional de Sitter space. We consider a one-parameter family of dSinvariant vacua related by Bogolyubov transformations and compute the corresponding Green functions. It is shown that none of these Green functions correspond to the one obtained by analytic continuation from AdS. Among this family...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 1998
ISSN: 1029-8479
DOI: 10.1088/1126-6708/1998/02/014