Tootfinder

The limits of #cosmology: #telescopes that we can dream about, at wavelengths spanning decimetric radio through optical to terahertz FIR. [...] Here I will set out my vision of the case for #LunarAstronomy over the next several decades."

Artenschutz beginnt nebenan 🙂
https://www.ardmediathek.de/video/dox-der-dokumentarfilm-im-br/die-wiese-ein-paradies-nebenan-oder-doku/br/Y3JpZDovL2JyLmRlL2Jyb2FkY2FzdC9G…

DoX - Der Dokumentarfilm im BR: Die Wiese · Ein Paradies nebenan - hier anschauen
Nirgendwo ist es bunt, so vielfältig und so schön wie in einer blühenden Sommerwiese. Nirgendwo leben mehr Tierarten auf engstem Raum zusammen und nirgendwo ist das Konzert tierischer Interpreten vielfältiger. Hunderte Arten von Vögeln, Heuschrecken, Zikaden und anderen haben jeweils ihre eigene, unverkennbare Melodie. Hunderte weitere Arten teilen ihre Bedürfnisse stumm, aber mit prächtigen Farben und erstaunlichen Formen mit. Manche Wiesenbewohner führen sogar komplizierte Tänze auf…

Experimental Evaluation of Joint Clock Recovery and Equalization for Sub-Terahertz Links
Pietro Savazzi, Anna Vizziello, Sherif Badran, Josep M. Jornet
https://arxiv.org/abs/2509.07758

Experimental Evaluation of Joint Clock Recovery and Equalization for Sub-Terahertz Links
This paper proposes and experimentally evaluates a joint clock recovery (CR) and equalization architecture tailored for high-speed sub-terahertz (sub-THz) wireless communication links. Specifically, a Baud-spaced digital receiver architecture is investigated that combines a constant modulus algorithm (CMA) equalizer with a blind timing error detector (TED), enabling robust symbol timing synchronization without decision-directed (DD) feedback or pilot symbols. The proposed TED leverages the CMA …

Low Overhead Universal Quantum Computation with Triorthogonal Codes
Dawei Jiao, Mahdi Bayanifar, Alexei Ashikhmin, Olav Tirkkonen
https://arxiv.org/abs/2510.05708 https://

Low Overhead Universal Quantum Computation with Triorthogonal Codes
We explore the use of triorthogonal codes for universal fault-tolerant quantum computation and propose two methods to circumvent the Eastin-Knill theorem, which prohibits any single quantum error-correcting code from supporting both universality and a transversal gate set. First, we simplify the implementation of the logical Hadamard gate for triorthogonal codes by exploiting the fact that they have transversal controlled-Z (CZ) gates, resulting in a circuit with reduced overhead. Then, we intr…

THz-PINNs: Time-Domain Forward Modeling of Terahertz Spectroscopy with Physics-Informed Neural Networks
Pengfei Zhu, Xavier Maldague
https://arxiv.org/abs/2509.07161 https://

THz-PINNs: Time-Domain Forward Modeling of Terahertz Spectroscopy with Physics-Informed Neural Networks
Terahertz time-domain spectroscopy (THz-TDS) is a powerful tool for extracting optical and electrical parameters, as well as probing internal structures and surface morphology of materials. However, conventional simulation techniques, such as the finite element method (FEM) and finite-difference time-domain (FDTD), face challenges in accurately modeling THz wave propagation. These difficulties arise from the broad operating bandwidth of THz-TDS (~0.1-10 THz), which demands extremely high tempor…

I already have a deeply-trained deterministic expert system using carbon-based storage and processing which gives me the answer provided by a LLM ('the commands to run to get an answer') in an instant.
It even knows not to tell me 'netstat' when I'm on a FreeBSD box. https://infosec.exchange/…

THz/RF Multi-Hop Routing Throughput: Performance, Optimization, and Application
Zhengying Lou, Baha Eddine Youcef Belmekki, Mohamed-Slim Alouini
https://arxiv.org/abs/2508.06975

THz/RF Multi-Hop Routing Throughput: Performance, Optimization, and Application
Terahertz (THz) communication offers a promising solution for high-throughput wireless systems. However, the severe path loss of THz signals raises concerns about its effectiveness compared to radio frequency (RF) communication. In this article, we establish the first stochastic geometry (SG)-based analytical framework for routing in THz systems. We develop a stepwise optimization approach to maximize throughput, including power allocation, relay selection, and number of hops design. Analytical…

The limits of cosmology
Joseph Silk
https://arxiv.org/abs/2509.08066 https://arxiv.org/pdf/2509.08066

The limits of cosmology
The Moon is our future. It may seem like a chimera with a projected cost in excess of 100 billion\$, and counting, dispensed on ARTEMIS with little to show to date. However it is the ideal site for the largest telescopes that we can dream about, at wavelengths spanning decimetric radio through optical to terahertz FIR. And it is these future telescopes that will penetrate the fundamental mysteries of the first hydrogen clouds, the first stars, the first galaxies, the first supermassive black ho…

Kondo echo dynamics of terahertz-pumped heavy fermions
Francisco Meirinhos, Michael Turaev, Michael Kajan, Tim Bode, Johann Kroha
https://arxiv.org/abs/2509.07117 https://

Kondo echo dynamics of terahertz-pumped heavy fermions
We provide a theoretical framework to describe the nonequilibrium temporal dynamics of correlated electron systems for realistic system parameters and the consequent, often exponentially long time scales. It is based on an entirely integro-differential formulation of time-dependent dynamical mean-field theory, the noncrossing approximation, and the quantum representation of a driving electromagnetic field. For heavy-fermion systems, we identify two key nonequilibrium mechanisms governing their …

Replaced article(s) found for eess.SP. https://arxiv.org/list/eess.SP/new
[1/1]:
- Diversity Analysis for Terahertz Communication Systems under Small-Scale Fading
Almutasem Bellah Enad, Jihad Fahs, Hakim Jemaa, Hadi Sarieddeen, Tareq Y. Al-Naffouri