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A Theoretically-Grounded Codebook for Digital Semantic Communications
Lingyi Wang, Rashed Shelim, Walid Saad, Naren Ramakrishnan
https://arxiv.org/abs/2510.07108 https://…

A Theoretically-Grounded Codebook for Digital Semantic Communications
The use of a learnable codebook provides an efficient way for semantic communications to map vector-based high-dimensional semantic features onto discrete symbol representations required in digital communication systems. In this paper, the problem of codebook-enabled quantization mapping for digital semantic communications is studied from the perspective of information theory. Particularly, a novel theoretically-grounded codebook design is proposed for jointly optimizing quantization efficiency…

Mailbag: Why do people discredit wins? https://www.dallascowboys.com/news/mailbag-why-do-people-discredit-wins

🏎️ Giving waste plastics a second life as high-performance carbon nanomaterials
#plastics

Giving waste plastics a second life as high-performance carbon nanomaterials
A study published in Nature Communications has shown that, rather than being discarded, plastics can be transformed into valuable carbon nanomaterials that help solve both energy and environmental challenges.

Exploiting Phase Light Modulators for Low-SWaP Real-time Wavefront Correction at High-Resolution
John M. Bass, Jeffrey Y. Chen, Gregory M. Nero, Vijay Nafria, Youngsik Kim, Ivan B. Djordjevic, Yushi Kaneda, Thomas L. Koch, Muralidhar M. Balaji, Yuzuru Takashima, Florian Willomitzer
https://arxiv.org/abs/2509.05896

Exploiting Phase Light Modulators for Low-SWaP Real-time Wavefront Correction at High-Resolution
Wavefront correction and beam tracking are critical in applications such as long-range imaging through turbulence and free-space optical communication. For instance, adaptive optics systems are employed to correct wavefront distortions caused by atmospheric turbulence and optical misalignments, while beam tracking systems maintain alignment between separate devices in free-space communication scenarios. Current state-of-the-art approaches offer several high-performance solutions, each tailored …

A Hybrid TDMA/CSMA Protocol for Time-Sensitive Traffic in Robot Applications
Shiqi Xu, Lihao Zhang, Yuyang Du, Qun Yang, Soung Chang Liew
https://arxiv.org/abs/2509.06119 https:…

A Hybrid TDMA/CSMA Protocol for Time-Sensitive Traffic in Robot Applications
Recent progress in robotics has underscored the demand for real-time control in applications such as manufacturing, healthcare, and autonomous systems, where the timely delivery of mission-critical commands under heterogeneous robotic traffic is paramount for operational efficacy and safety. In these scenarios, mission-critical traffic follows a strict deadline-constrained communication pattern: commands must arrive within defined QoS deadlines, otherwise late arrivals can degrade performance o…

The Optical and Mechanical Design of POEMMA Balloon with Radio
Eric Mayotte (for the JEM-EUSO Collaboration), Austin Cummings (for the JEM-EUSO Collaboration), Paul Degarate (for the JEM-EUSO Collaboration), Neville DeWitt Pierrat (for the JEM-EUSO Collaboration), Johannes Eser (for the JEM-EUSO Collaboration), William Finch (for the JEM-EUSO Collaboration), Julia Burton-Heibges (for the JEM-EUSO Collaboration), Tobias Heibges (for the JEM-EUSO Collaboration), Eric Mentzell (for the JE…

The Optical and Mechanical Design of POEMMA Balloon with Radio
POEMMA Balloon with Radio (PBR) is a NASA super-pressure balloon mission building toward the proposed Probe Of Extreme Multi-Messenger Astrophysics (POEMMA) dual satellite mission. In its planned 2027 launch, PBR will study Ultra-High-Energy Cosmic Rays, Neutrinos, and High-Altitude Horizontal Airshowers from 33 km above the Earth. By operating at balloon altitudes, PBR will provide a novel vantage point to study air-shower physics while offering competitive instantaneous exposure to neutrinos …

Experimental Analysis of Biasing Voltage Generation in Wave-Controlled RIS
Miguel Saavedra-Melo, Benjamin Bradshaw, Vanessa Yao, Ender Ayanoglu, Lee Swindlehurst, Filippo Capolino
https://arxiv.org/abs/2509.07293

Experimental Analysis of Biasing Voltage Generation in Wave-Controlled RIS
Reconfigurable intelligent surfaces (RISs), an emerging technology proposed for inclusion in next generation wireless communication systems, are programmable surfaces that can adaptively reflect incident electromagnetic radiation in different desired directions. To reduce the complexity and physical profile of conventional RIS designs, a novel concept known as Wave-Controlled RIS has been proposed, in which standing waves along a transmission line are used to generate the required dc bias for r…

Strongly bounded generation in transformation groups
Nicholas G. Vlamis
https://arxiv.org/abs/2510.07541 https://arxiv.org/pdf/2510.07541

Strongly bounded generation in transformation groups
Word metrics on finitely generated groups have canonical quasi-isometry classes, making quasi-isometry invariants genuine group invariants. Rosendal generalized this phenomenon to topological groups through CB-generation, but in the general topological setting the resulting quasi-isometry invariants are not invariants of the underlying abstract group. Specializing to the discrete case yields what we call SB-generated groups, where the invariants are genuinely algebraic. We show that SB-generati…

A nonequilibrium distribution for stochastic thermodynamics
Jean-Luc Garden
https://arxiv.org/abs/2510.08315 https://arxiv.org/pdf/2510.08315

A nonequilibrium distribution for stochastic thermodynamics
The canonical distribution of Gibbs is extended to the case of systems outside equilibrium. The distribution of probabilities of a discrete energy levels system is used to provide a microscopic definition of work, along with a microscopic definition of the uncompensated heat of Clausius involved in nonequilibrium processes. The later is related to the presence of non-conservatives forces with regards to the variation of the external parameters. This new framework is used to investigate the none…

Higher-order epitaxy: A pathway to suppressing structural instability and emergent superconductivity
Yuki Sato, Soma Nagahama, Shunsuke Kitou, Hajime Sagayama, Ilya Belopolski, Ryutaro Yoshimi, Minoru Kawamura, Atsushi Tsukazaki, Naoya Kanazawa, Takuya Nomoto, Ryotaro Arita, Taka-hisa Arima, Masashi Kawasaki, Yoshinori Tokura
https://arxiv…

Higher-order epitaxy: A pathway to suppressing structural instability and emergent superconductivity
Molecular beam epitaxy enables the growth of thin film materials with novel properties and functionalities. Typically, the lattice constants of films and substrates are designed to match to minimise disorders and strains. However, significant lattice mismatches can result in higher-order epitaxy, where commensurate growth occurs with a period defined by integer multiples of the lattice constants. Despite its potential, higher-order epitaxy is rarely used to enhance material properties or induce…