Attractor mechanism in gauged Supergravity (Record no. 48870)
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| 000 -LEADER | |
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| fixed length control field | 03466nam a2200265Ia 4500 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 160627s2013||||xx |||||||||||||| ||und|| |
| 080 ## - UNIVERSAL DECIMAL CLASSIFICATION NUMBER | |
| Universal Decimal Classification number | HBNI Th58 |
| 100 ## - MAIN ENTRY--AUTHOR NAME | |
| Personal name | Inbasekar Karthik |
| Relator term | author |
| 245 ## - TITLE STATEMENT | |
| Title | Attractor mechanism in gauged Supergravity |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Year of publication | 2013 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Number of Pages | 182p. |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | 2013 |
| 502 ## - DISSERTATION NOTE | |
| Degree Type | Ph.D |
| 502 ## - DISSERTATION NOTE | |
| Name of granting institution | HBNI |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc | Theme of Thesis: One of the significant successes of string theory as a quantum theory of gravity is that it can give a statistical description of the thermodynamic black hole entropy via microstate counting and a macroscopic description via the attractor mechanism. The author explores both the descriptions. The counting of certain class of BPS states in string theory is studied in the microscopic side. A possible generalisation of the attractor mechanism suitable for extremal black brane horizons in gauged supergravity, is studied in the macroscopic side. Generalised attractors in gauged supergravity is constructed and their stability is investigated. Chapter 1, gives a discussion in the basics of string theory and the recent developments. Chapter 2, discusses black hole microstate counting in string theory. String theory has successfully given a statistical understanding of the thermodynamic Bekenstein-Hawking area law by counting microscopic degrees of freedom of certain supersymmetric extremal black holes [2]. Attractor mechanism in supergravity is studied in chapter 3. The independence of the Bekenstein-Hawking entropy of extremal black holes from the asymptotic values of moduli fields is explained by the attractor mechanism. Chapter 4, discusses black holes in AdS space, black brane limits and the Bianchi classification of five dimensional homogeneous extremal black brane horizons [7]. Chapter 5, describes the background material in gauged supergravity. Gauged supergravities are supersymmetry preserving deformations of ungauged supergravity. The deformations are implemented by promoting some of the global symmetries of the ungauged theory to local symmetries. In Chapter 6, the generalised attractors are studied in gauged supergravity and explicit examples of Bianchi attractors from specific models are constructed. A simple gauged supergravity model [18,19] with one vector multiplet is considered for discussion and constructed some explicit examples of such Bianchi attractors. In particular, constructed a "z = 3 Lifshitz solution", Bianchi type II and Bianchi Type VI solutions and argued that Bianchi type III and type V geometries do not exist in the model considered. In [20], different gauged supergravity models, including models in the hypermultiplet sector are explored to embed all the Bianchi type metrics in gauged supergravity. In Chapter 7, the stability of generalised attractors are discussed. The result of the stability analysis [21] is reported in the thesis. This thesis, focussed on the microscopic state counting in string theory and a generalisation of the attractor mechanism to gauged supergravity. Chapter 8 concludes and discusses the future directions. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Physics |
| 653 10 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Gauged SuperGravity |
| 653 10 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | HBNI Th58 |
| 653 10 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | String Theory |
| 720 1# - ADDED ENTRY--UNCONTROLLED NAME | |
| Thesis Advisor | Govindarajan, T.R. |
| Relator term | Thesis advisor [ths] |
| 720 1# - ADDED ENTRY--UNCONTROLLED NAME | |
| Thesis Advisor | Prasanta Tripathy |
| Relator term | Thesis advisor [ths] |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | http://www.imsc.res.in/xmlui/handle/123456789/345 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | THESIS & DISSERTATION |
| Withdrawn status | Lost status | Damaged status | Not for loan | Current library | Full call number | Accession Number | Uniform Resource Identifier | Koha item type |
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| IMSc Library | HBNI Th58 | 69365 | http://www.imsc.res.in/xmlui/handle/123456789/345 | THESIS & DISSERTATION |