Zobrazeno 1 - 10
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pro vyhledávání: '"Fritzsch, Felix"'
Recently, the full version of the Eigenstate Thermalization Hypothesis (ETH) has been systematized using Free Probability. In this paper, we present a detailed discussion of the Free Cumulants approach to many-body dynamics within the microcanonical
Externí odkaz:
http://arxiv.org/abs/2409.01404
While the notion of quantum chaos is tied to random matrix spectral correlations, also eigenstate properties in chaotic systems are often assumed to be described by random matrix theory. Analytic insights into eigenstate correlations can be obtained
Externí odkaz:
http://arxiv.org/abs/2407.19929
Autor:
Fritzsch, Felix, Prosen, Tomaž
Random matrix spectral correlations is a defining feature of quantum chaos. Here, we study such correlations in a minimal model of chaotic many-body quantum dynamics where interactions are confined to the system's boundary, dubbed \textit{boundary ch
Externí odkaz:
http://arxiv.org/abs/2312.12452
The Eigenstate-Thermalization-Hypothesis (ETH) has been established as the general framework to understand quantum statistical mechanics. Only recently has the attention been paid to so-called full ETH, which accounts for higher-order correlations am
Externí odkaz:
http://arxiv.org/abs/2303.00713
The emergence of random matrix spectral correlations in interacting quantum systems is a defining feature of quantum chaos. We study such correlations in terms of the spectral form factor and its moments in interacting chaotic few- and many-body syst
Externí odkaz:
http://arxiv.org/abs/2302.09955
Publikováno v:
SciPost Phys. 15, 092 (2023)
We compute the dynamics of entanglement in the minimal setup producing ergodic and mixing quantum many-body dynamics, which we previously dubbed {\em boundary chaos}. This consists of a free, non-interacting brickwork quantum circuit, in which chaos
Externí odkaz:
http://arxiv.org/abs/2301.08168
Publikováno v:
Phys. Rev. Lett. 129, 193901 (2022)
We conjecture that chaotic resonance modes in scattering systems are a product of a conditionally invariant measure from classical dynamics and universal exponentially distributed fluctuations. The multifractal structure of the first factor depends s
Externí odkaz:
http://arxiv.org/abs/2203.09752
Autor:
Fritzsch, Felix, Prosen, Tomaž
Scrambling in many-body quantum systems causes initially local observables to spread uniformly over the whole available Hilbert space under unitary dynamics, which in lattice systems causes exponential suppression of dynamical correlation functions w
Externí odkaz:
http://arxiv.org/abs/2112.05093
Autor:
Fritzsch, Felix
The characteristics of optical modes in whispering-gallery cavities crucially depend on the underlying classical ray dynamics as they are subject to dynamical tunneling. In particular, classical nonlinear resonances lead to the hybridization of whisp
Externí odkaz:
https://tud.qucosa.de/id/qucosa%3A70987
https://tud.qucosa.de/api/qucosa%3A70987/attachment/ATT-0/
https://tud.qucosa.de/api/qucosa%3A70987/attachment/ATT-0/
Autor:
Fritzsch, Felix, Prosen, Tomaž
Publikováno v:
Phys. Rev. E 103, 062133 (2021)
The eigenstate thermalization hypothesis provides to date the most successful description of thermalization in isolated quantum systems by conjecturing statistical properties of matrix elements of typical operators in the (quasi-)energy eigenbasis. H
Externí odkaz:
http://arxiv.org/abs/2103.11694