High Energy Particle Physics

    

The Cosmological Constant from AdS5 x S5

Authors: Bernard Riley

The dark energy density of the vacuum, widely regarded as the cause of the cosmological constant, may derive from zero-point energy in the 5-sphere of AdS5 x S5 spacetime. The dark energy density scales inversely as the volume of the 5-sphere and has the value 1.33 x 10-123, in Planck units, at the length scale of the Bohr radius, which seems to be the characteristic length scale of the vacuum. The value of dark energy density calculated in this way is consistent with the value, 1.29 ± 0.07 x 10-123, calculated from the WMAP 9-year six-parameter ΛCDM fit. The Bohr radius, dark energy density and, therefore, cosmological constant derive from the geometry of spacetime and can be written in elegant form in Planck units.

Comments: 4 Pages.

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Submission history

[v1] 2013-07-22 14:38:23

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