Reduction Mechanics of The Cosmological Constant

Detta är en Master-uppsats från Uppsala universitet/Teoretisk fysik

Författare: Martin Sandström; [2018]

Nyckelord: gravity; branes; adm;

Sammanfattning: The quantum creation of membranes by a totally antisymmetric tensor and gravitational fields is considered in arbitrary space-time dimensions. The creation process is described by instanton tunneling. As membranes are created, the energy density associated with the antisymmetric field decreases, reducing the effective cosmological constant to a lower value. For a collection of parameters and initial conditions, the creation mechanism goes to a halt as soon as the cosmological constant is near zero. A brief exploration of a canonical gravity representation is also considered, where the system of ADM-composition in arbitrary space-time dimensions is introduced.

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