WFRF:(Tornsö Marcus 1993)
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- Tornsö, Marcus,1993Chalmers tekniska högskola,Chalmers University of Technology (författare)
Plasma Oscillations in Holographic Quantum Matter
- BokEngelska2021
Förlag, utgivningsår, omfång ...
- Gothenburg,2021
- electronicrdacarrier
Nummerbeteckningar
- LIBRIS-ID:oai:research.chalmers.se:f4368d99-6471-47d4-bbeb-c698e366b31e
- ISBN:9789179055257
- https://research.chalmers.se/publication/525729URI
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- Språk:engelska
- Sammanfattning på:engelska
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- In this thesis we explore strongly correlated matter in the framework of holographic duality. Specifically, we examine the quasinormal modes of such systems, and we extend the current framework to efficiently and naturally cover plasmons and other collective modes that may be found within strongly correlated matter. The interest in strongly correlated matter is motivated by the presence of a “strange metal” phase both in high temperature superconductors and in near charge neutral graphene, both being materials of immense scientific interest. The strange metal phase is a phase characterized by the absence of quasi-particles. This implies that conventional methods, such as perturbation theory in quantum field theory and Monte Carlo methods fall short of being able to describe the dynamics. Perhaps surprisingly, string theory provides a novel method, capable of precisely describing such systems - the holographic duality. With the holographic duality, strongly coupled matter is mapped onto a weakly coupled gravity theory in one additional dimension, allowing for a conventional treatment of the dual system. In this thesis, we extend the existing framework to also describe polarizing media. This is explicitly done in the form of new boundary conditions on the holographic dual, which deviate from previous holographic studies, and we contrast the quasinormal modes previously studied with the emergent collective modes we find for some studied models. We find new results, as well as confirm the predictions of less general models in their respective regions of validity and pave the way for more complex future models.
Ämnesord och genrebeteckningar
- NATURVETENSKAP Fysik hsv//swe
- NATURAL SCIENCES Physical Sciences hsv//eng
- NATURVETENSKAP Fysik Annan fysik hsv//swe
- NATURAL SCIENCES Physical Sciences Other Physics Topics hsv//eng
- NATURVETENSKAP Fysik Den kondenserade materiens fysik hsv//swe
- NATURAL SCIENCES Physical Sciences Condensed Matter Physics hsv//eng
- holography
- quasinormal modes
- gauge/gravity duality
- graphene
- strong coupling
- plasmonics
- strongly correlated media
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- Chalmers tekniska högskola (creator_code:org_t)
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