Seminar über Theoretische Festkörperphysik |
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Vortragender: | Andrey Bagrov |
Datum: | 30.04.2018 14:00 |
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Ort: | Room 10.01, 10th Floor, Bldg. 30.23, KIT Campus South |
Zugehörigkeit: | Radboud University Nijmegen, Netherlands |
Gastgeber: | Dr. Igor Gornyi |
Abstract
Complexity of a system or a process is one of the most intuitively clear yet very elusive concepts in our perception of the reality. It has recently attracted a lot of attention within the AdS/CFT correspondence due to its relations to a wide class of problems concerning holographic entanglement entropy, the black hole information paradox, quantum chaos, and scrambling. While holography deals with the computational complexity of quantum states, we make an attempt to employ the holographic intuition to gain a better understanding of complexity of a different kind - the effective (or physical) complexity, that maximizes at the border between order and chaos. Using the simplest possible model of a local quench in AdS_3 as a tool to create a regular pattern coexistent with homogeneous "randomness", we argue that the holographic complexity has certain traits of what one would expect to be the physical complexity, and suggest possible ways to investigate these connections further.