Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 430 for “"ADS"”.
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Instabilities in asymptotically AdS spacetimes
… and any $\alpha<9/4$, we find a Kerr-AdS spacetime $(\mathcal{M},g_{\mathrm{KAdS}})$, in which the Klein-Gordon equation \begin{align*} \Box_g\psi+\frac{\alpha}{\ell^2}\psi=0 \end{align*} has an exponentially growing mode solution satisfying a Dirichlet boundary condition at infinity. …
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Spiky strings and the AdS/CFT correspondence
… of semiclassical type IIB string theory on AdS3 × S1 and on pure AdS3 in the limit of large angular momentum S. We first focus on the integrability technique known as finite-gap formalism for strings in AdS3 × S1, leading to the definition of a hyperelliptic Riemann surface, the spectral …
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Applying AdS/CFT to many body systems
… of a scalar operator in this theory using the AdS/CFT correspondence. We describe numerical techniques for calculating the retarded Green function of the operator. The results suggest that further improvement in the robustness of the codes is needed.
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Understanding Video Ads on Social Media Platforms
… the effects of creative elements in video ads on social media platforms and investigate how these ads impact consumer behavior in both normal times and times of crisis. The first chapter performs a comprehensive exploration of video ads on social media platforms using large-scale …
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CFT correlation functions from AdS/CFT correspondence
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Physics, 1999.
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Critical Discourse Analysis of Sexual Enhancement Medication Ads
<p>This study contributes to the expanding critical range of discourse analysis by analyzing texts used to market Viagra and other "sexual enhancement medication," pharmaceuticals that treat "erectile dysfunction". Applying elements of Norman Fairclough's critical discourse analysis framework, this …
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On D-brane configurations and ADS/CFT duality
… branes appearing in relation to the AdS/CFT conjecture. After a general introductory chapter to the strings, branes and dualities, each research work appears in a separate part of the thesis (parts I, II). Conclusions are given at the end of each part. In the first part we introduce …
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Simulation of IBIS models using HSpice and ADS
… HSpice and Agilent Advanced De- sign System (ADS). IBIS has become widely accepted in industry due to the fact that it protects the intellectual property of vendors and because of its standardized format which allows it to be integrated with many circuit simulators.
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Zero sound modes in the AdS/CFT correspondence
… living around the charged black hole of an AdS/CFT spacetime. In particular, we show that these bulk modes cause corresponding singularities in the correlation functions of boundary gauge fields. Possible implications for the study of non-Fermi liquids are discussed.
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Geometry and entanglement in AdS/CFT and beyond
… the perturbative framework to geometries beyond AdS/CFT. On the field theory we side, we discuss perturbation theory with irrelevant deformations; on the gravity side, we study cutoff AdS and D3 brane geometry. The result is not conclusive, but we believe that the framework we set up, along with …
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Study of the Ads/CFT correspondence in low dimensions
Tesis doctoral con mención internacional y por compendio de publicaciones
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Cultural differences on placebo effects elicited by pharmaceutical ads
… information about drug effects contained in the ads. And I proposed that differential information processing would cause differences in people’s expectancies about the drugs’ effects. The hypotheses were not supported in the results. Possible reasons were discussed.
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Diophantine Approximation as Cosmic Censor for AdS Black Holes
… Cosmic Censorship Conjecture for asymptotically AdS spacetimes. We consider smooth linear perturbations governed by the conformal wave equation on Reissner–Nordström–AdS and Kerr–AdS black holes, respectively. We prescribe initial data on a spacelike hypersurface of a Reissner–Nordström–AdS and …
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Boundary conditions, effective action, and Virasoro algebra for AdS₃
… to study conformal symmetry in the boundary of AdS3. By requiring finiteness of the boundary effective action(s) for certain asymptotic transformations, we derive the well known Virasoro algebra and central charge associated with the boundary of AdS3. Our Virasoro generating transformations are …
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Phase transition of a vector operator in AdS-CFT
… vector operator in finite density system through AdS-CFT correspondence. By numerically solving the wave equations of the corresponding vector field in a AdS-RN black hole background geometry, we found poles of the retarded Green's functions in momentum space, which indicate possible …
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Aspects of finite temperature field theories in Ads/CFT
… field theories at finite temperature using the AdS/CFT correspondence. I present a general proof of an "inheritance principle" satisfied by a weakly coupled SU(N) (or U(N)) gauge theory with adjoint matter on a class of compact manifolds (like S3). In the large N limit, finite temperature …
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Generation and classification of AdS solutions and their CFT interpretation
… abierto de proporcionar a los nuevos backgrounds AdS, de forma consistente, teorías de campos súperconformes, las cuales pueden ser vistas como puntos fijos del flujo de renormalización de quivers lineales de rango creciente. Se propondrá así mismo una interesante relación entre estos quivers y la …
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ADS-B benefits to general aviation and barriers to implementation
Automatic Dependent Surveillance - Broadcast (ADS-B) will be the basis of the future surveillance system in the US. To achieve benefit from ADS-B, aircraft have to be equipped with ADS-B avionics across all stakeholders. General Aviation (GA) comprises over 96% of the active aircraft fleet in the …
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Encripted mode select ADS-B for tactical military situational awareness
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.
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Advertising and the elderly: Do magazine ads continue to reinforce ageism?
… younger population views the elderly in magazine ads, as well as how mature adults view themselves through media depiction when they see elderly characters in print ads. A convenience sample of one-hundred university students and forty-eight retired teachers from the Nevada Chapter of Retired …
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