Pseudospectra of Quasinormal Modes and Holography
arXiv:2407.04372 · doi:10.3389/fphy.2024.1460268
Abstract
The holographic duality (also known as AdS/CFT correspondence or gauge/gravity duality) postulates that strongly coupled quantum field theories can be described in a dual way in asymptotically Anti-de Sitter space. One of the cornerstones of this duality is the description of thermal states as black holes with asymptotically Anti-de Sitter boundary conditions. This idea has led to valuable insights into such fields as transport theory and relativistic hydrodynamics. In this context, the quasinormal modes of such black holes play a decisive role and therefore their stability properties are of upmost interest for the holographic duality. We review recent results using the method of pseudospectra.
Review contribution to 'Frontiers Research Topic': Quasi-Normal Modes, Non-Selfadjoint Operators and Pseudospectrum: an Interdisciplinary Approach. 10 pages, 1 figure. V2: improved discussion, new figure added, published version, 9 pages, 2 figures
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