Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Reduction Mechanics of The Cosmological Constant
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Theoretical Physics.
2018 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

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.

Abstract [sv]

Kvantprocessen av membranskapelse via en total anti-symmetrisk tensor och gravitationsfält är betänkt i arbiträra rumstidsdimensioner. Skapelseprocessen är beskriven via instantontunnling. Då membranen är skapade, reduceras värdet på energidensiteten som är associerad med det anti-symmetriska fältet. För en samling av parametrar och begynnelsevärden, stannar skapelseprocessen upp så fort den kosmologiska konstanten har ett värde nära noll. En kort utforskning av kanonisk gravitation är också betänkt, där ett system i termer av ADM-dekomposition i arbiträra rumstidsdimensioner är introducerat.

Place, publisher, year, edition, pages
2018.
Series
FYSAST ; FYSMAS1068
Keywords [en]
gravity, branes, adm
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:uu:diva-340233OAI: oai:DiVA.org:uu-340233DiVA, id: diva2:1178482
Educational program
Master Programme in Physics
Supervisors
Examiners
Available from: 2018-02-07 Created: 2018-01-29 Last updated: 2018-02-07Bibliographically approved

Open Access in DiVA

fulltext(399 kB)21 downloads
File information
File name FULLTEXT02.pdfFile size 399 kBChecksum SHA-512
d581645552fd387c9436ec508361dacb1f51696d0b9f10f9a26c3a2576db6e150caefd7e06d3048bfe34f7059e46d4700f72907b7bbbbc3ddafdde1416518356
Type fulltextMimetype application/pdf

By organisation
Theoretical Physics
Astronomy, Astrophysics and Cosmology

Search outside of DiVA

GoogleGoogle Scholar
Total: 21 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 55 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf