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On effective actions for the bosonic tachyon
Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Theoretical Physics.
2003 In: Journal of High Energy Physics, ISSN 1029-8479, Vol. 0311, 067- p.Article in journal (Refereed) Published
Place, publisher, year, edition, pages
2003. Vol. 0311, 067- p.
URN: urn:nbn:se:uu:diva-91991OAI: oai:DiVA.org:uu-91991DiVA: diva2:164919
Available from: 2004-09-01 Created: 2004-09-01Bibliographically approved
In thesis
1. Topics on D-branes and Holography
Open this publication in new window or tab >>Topics on D-branes and Holography
2004 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

We discuss various aspects of D-branes in string theory and holography in string theory and loop quantum gravity.

One way to study D-branes is from a microscopic perspective, using conformal field theory techniques. For example, we investigate the question of how D-branes can be introduced into orbifolded theories. Another way to study D-branes is from a space-time perspective. An example is provided by unstable D-branes, where we compute an effective action describing the decay of a bosonic D-brane.

The holographic principle is a proposed duality which suggests that a theory in any region has a dual description on the boundary. We explore two examples: (1) The area law for the entropy of a black hole in the framework of loop quantum gravity, related to particular regularizations of the area operator. (2) The AdS/CFT correspondence proposal, where we investigate a string pulsating on AdS using spin chains.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2004. 90 p.
Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1104-232X ; 998
Theoretical physics, theoretical physics, string theory, D-branes, dualities, AdS/CFT, spin chains, Bethe ansatz, boundary conformal field theory, conformal bootstrap, tachyon condensation, string field theory, loop quantum gravity, black holes, area spectrum, Hawking radiation, holographic principle, Teoretisk fysik
National Category
Physical Sciences
urn:nbn:se:uu:diva-4478 (URN)91-554-6012-7 (ISBN)
Public defence
2004-09-23, Polhemsalen, Ångströmlaboratoriet, Lägerhyddsvägen 1, Uppsala, 13:15
Available from: 2004-09-01 Created: 2004-09-01 Last updated: 2013-07-10Bibliographically approved

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