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Consequences of Non-Gaussian Instrumental Noise in Perturbed Nulling Interferometers
Felix A. Dannert, Philipp A. Huber, Thomas Birbacher, Romain Laugier, Markus J. Bonse, Emily O. Garvin, Adrian M. Glauser, Veronika Oehl, Sascha P. Quanz
https://arxiv.org/abs/2506.20653

Consequences of Non-Gaussian Instrumental Noise in Perturbed Nulling Interferometers
With the astrophysics community working towards the first observations and characterizations of Earth-like exoplanets, interest in space-based nulling interferometry has been renewed. This technique promises unique scientific and technical advantages by enabling direct mid-infrared observations. However, concept studies of nulling interferometers often overlook the impact of systematic noise caused by instrument perturbations. Earlier research introduced analytical and numerical models to addre…

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This https://arxiv.org/abs/2505.09918 has been replaced.
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Classical integrable spin chains of Landau-Lifshitz type from R-matrix identities
We describe a family of 1+1 classical integrable space-discrete models of the Landau-Lifshitz type through the usage of ansatz for $U$-$V$ (Lax) pair with spectral parameter satisfying the semi-discrete Zakharov-Shabat equation. The ansatz for $U$-$V$ pair is based on $R$-matrices satisfying the associative Yang-Baxter equation and certain additional properties. Equations of motion are obtained using a set of $R$-matrix identities. In the continuous limit we reproduce the previously known famil…

[2025-05-27 Tue (UTC), no new articles found for nlin.CG Cellular Automata and Lattice Gases]
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This https://arxiv.org/abs/2412.20122 has been replaced.
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Multi-component Toda lattice hierarchy
We give a detailed account of the N -component Toda lattice hierarchy. This hierarchy is an extended version of the one introduced by Ueno and Takasaki. Our version contains N discrete variables rather than one. We start from the Lax formalism, deduce the bilinear relation for the wave functions from it and then, based on the latter, prove existence of the tau-function. We also show how the multi-component Toda lattice hierarchy is embedded into the universal hierarchy which is basically the mu…

Direct High-Resolution Imaging of Earth-Like Exoplanets
Slava G. Turyshev
https://arxiv.org/abs/2506.20236 https://arxiv.org/pdf/2506…

Direct High-Resolution Imaging of Earth-Like Exoplanets
We have surveyed all conventional methods proposed or conceivable for obtaining resolved images of an Earth-like exoplanet. Generating a 10x10 pixel map of a 1 R_Earth world at 10 pc demands ~0.85 uas angular resolution and photon collection sufficient for SNR >= 5 per "micro-pixel". We derived diffraction-limit and photon-budget requirements for: (1) large single-aperture space telescopes with internal coronagraphs; (2) external starshades; (3) space-based interferometry (nulling and non-nulli…

[2025-05-26 Mon (UTC), no new articles found for nlin.CG Cellular Automata and Lattice Gases]
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[2025-05-27 Tue (UTC), no new articles found for nlin.CG Cellular Automata and Lattice Gases]
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[2025-05-26 Mon (UTC), no new articles found for nlin.CG Cellular Automata and Lattice Gases]
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