Tootfinder

Moonshot says Kimi K2.5 builds on K2 with "pretraining over ~15T mixed visual and text tokens" and "can self-direct an agent swarm with up to 100 sub-agents" (Kimi)
https://www.kimi.com/blog/kimi-k2-5.html

Fertiger Luxshare: Ransomware-Gruppe will Apple-Daten erbeutet haben
Neben Foxconn ist Luxshare Precision mittlerweile einer der wichtigsten Produzenten von Apple-Hardware. Dort soll es einen Datenabfluss gegeben haben.

Attosecond-resolved quantum fluctuations of light and matter
Matan Even Tzur, Chen Mor, Noa Yaffe, Michael Birk, Andrei Rasputnyi, Omer Kneller, Ido Nisim, Ido Kaminer, Maria Chekhova, Michael Krueger, Misha Ivanov, Nirit Dudovich, Oren Cohen
https://arxiv.org/abs/2511.18362 https://arxiv.org/pdf/2511.18362 https://arxiv.org/html/2511.18362
arXiv:2511.18362v1 Announce Type: new
Abstract: Until recently, attosecond optical spectroscopy and quantum optics evolved along non-overlapping directions. In attosecond science, attosecond pulses have been regarded as classical waves, applied to probe electron dynamics on their natural time scale. Here, we transfer fundamental concepts of quantum optics into attosecond physics, enabling control of both the properties of the XUV attosecond pulses and the quantum fluctuations of matter on attosecond time scales. By combining bright squeezed vacuum (BSV) with a strong laser field to drive high-harmonic generation, we transfer the quantum properties of the BSV onto the resulting XUV attosecond pulses. Applying advanced attosecond interferometry, we reconstruct the quantum state of the XUV high harmonics and their associated attosecond pulses with attosecond precision. Finally, we resolve the squeezing of the electron's wavepacket during one of the most fundamental strong-field phenomena - field induced tunneling. The ability to measure and control quantum correlations in both electrons and XUV attosecond pulses establishes a foundation for attosecond quantum electrodynamics, manipulating the quantum state of electrons and photons with sub-cycle precision.
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Vivani subsidiary Cortigent to present Orion Visual Cortical Prosthesis System at NANS 2026, January 23, 2026 https://finance.yahoo.com/news/vivani-subsidiary-cortigent-present-orion-120000709.html 60 cortical surface electrodes, based on Argus II…

Vivani Subsidiary Cortigent to Present Orion System’s Advanced Brain Implant Technology in Poster Session at NANS 2026
Cortigent is a leading developer of brain interface devices based on precision neurostimulation technology The company’s new Orion cortical stimulation...

High-precision luminescence cryothermometry strategy by using hyperfine structure
Marina N. Popova, Mosab Diab, Boris Z. Malkin
https://arxiv.org/abs/2511.19088 https://arxiv.org/pdf/2511.19088 https://arxiv.org/html/2511.19088
arXiv:2511.19088v1 Announce Type: new
Abstract: A novel, to the best of our knowledge, ultralow-temperature luminescence thermometry strategy is proposed, based on a measurement of relative intensities of hyperfine components in the spectra of Ho$^{3 }$ ions doped into a crystal. A $^{7}$LiYF$_4$:Ho$^{3 }$ crystal is chosen as an example. First, we show that temperatures in the range 10-35 K can be measured using the Boltzmann behavior of the populations of crystal-field levels separated by an energy interval of 23 cm$^{-1}$. Then we select the 6089 cm$^{-1}$ line of the holmium $^5I_5 \rightarrow ^5I_7$ transition, which has a well-resolved hyperfine structure and falls within the transparency window of optical fibers (telecommunication S band), to demonstrate the possibility of measuring temperatures below 3 K. The temperature $T$ is determined by a least-squares fit to the measured intensities of all eight hyperfine components using the dependence $I(\nu) = I_1 \exp(-b\nu)$, where $I_1$ and $b = a\nu \frac{\nu}{kT}$ are fitting parameters and a accounts for intensity variations due to mixing of wave functions of different crystal-field levels by the hyperfine interaction. In this method, the absolute and relative thermal sensitivities grow at $T$ approaching zero as $\frac{1}{T^2}$.and $\frac{1}{T}$, respectively. We theoretically considered the intensity distributions within hyperfine manifolds and compared the results with experimental data. Application of the method to experimentally measured relative intensities of hyperfine components of the 6089 cm$^{-1}$ PL line yielded $T = 3.7 \pm 0.2$ K. For a temperature of 1 K, an order of magnitude better accuracy is expected.
toXiv_bot_toot

Maintaining accurate timing in virtual machines has always been a challenge. Especially on hosts with many VMs.
Here's a clever solution, hopefully coming soon to a hypervisor or OS near you.
https://uapi-group.org/specifications/specs/vmclock/

picolibc CI was taking hours (and hours) so I spent yesterday rewriting __rem_pio2f, which computes x mod π/2 for 32-bit floats. That shaved over an hour and a half from the math verification CI step.
I should rewrite the 64-, 80- and 128- bit versions someday...
https://github.com/picolibc/picolibc/p

math: Improve performance of 32-bit rem_pio2 function by keith-packard · Pull Request #1171 · picolibc/picolibc
Use integer math to perform the rem_pio2 instead of extended precision floating point code.

High-Resolution Optical Correlation-Domain Reflectometry with 100-km Measurement Range
Takaki Kiyozumi, Soshi Yoshida, Yuta Higa, Keisuke Motoda, Sze Yun Set, Shinji Yamashita, Yosuke Mizuno
https://arxiv.org/abs/2511.18400 https://arxiv.org/pdf/2511.18400 https://arxiv.org/html/2511.18400
arXiv:2511.18400v1 Announce Type: new
Abstract: In the maintenance of optical fiber networks, there is a growing demand for high-precision measurement of optical loss distribution and fault locations over long distances. In this study, we propose an OCDR method incorporating periodic pseudo-random modulation (PPRM), and demonstrate that it enables the acquisition of loss distribution based on Rayleigh scattering and the positions of reflection points in an approximately 100-km optical fiber, with a spatial resolution of about 19 cm and a measurement time of about 20 seconds.
toXiv_bot_toot

🎻 The best recording ever of Bruch’s Violin Concerto No. 1 is from 1962. The GOAT Jascha Heifetz with unparalleled precision, clarity, and musicality. And that transition from the first into the second movement… 🤯
https://www.youtube.com/watch?v=Lw7o3mURxqw

To cut tariffs Trump imposed on their country, the Swiss sent a delegation of industry tycoons bearing gifts
— a special Rolex desktop clock,
a 1-kilogram personalized gold bar,
and loads of flattery.
https://www.axios.com/2025/11/14/trump-swiss-gifts-gold-rol…

How to lobby Trump with Swiss precision: gifts, gold and gab
How the Swiss broke a diplomatic logjam on tariffs by arriving with tributes fit for a king.

America’s Dirtiest Carbon Polluters, Mapped to Ridiculous Precision https://gizmodo.com/americas-dirtiest-carbon-polluters-mapped-to-ridiculous-precision-2000700924

America’s Dirtiest Carbon Polluters, Mapped to Ridiculous Precision
“The U.S. taxpayers have a right to this data.”

Again, it's reprehensible that none of the press reports on the power outage in Venezuela even bother to mention that we bombed the sh*t out of two substations. I feel like I'm going crazy.
https://www.nytimes.com/2…

Cyberattack in Venezuela Demonstrated Precision of U.S. Capabilities
Senators are expected to ask Lt. Gen. Joshua M. Rudd, President Trump’s nominee to lead the U.S. Cyber Command, about the mission in Caracas.

A complex structure of escaping helium spanning more than half the orbit of the ultra-hot Jupiter WASP-121 b: #exoplanet WASP-121b.

Roadmap: Emerging Platforms and Applications of Optical Frequency Combs and Dissipative Solitons
Dmitry Skryabin, Arne Kordts, Richard Zeltner, Ronald Holzwarth, Victor Torres-Company, Tobias Herr, Fuchuan Lei, Qi-Fan Yang, Camille-Sophie Br\`es, John F. Donegan, Hai-Zhong Weng, Delphine Marris-Morini, Adel Bousseksou, Markku Vainio, Thomas Bunel, Matteo Conforti, Arnaud Mussot, Erwan Lucas, Julien Fatome, Yuk Shan Cheng, Derryck T. Reid, Alessia Pasquazi, Marco Peccianti, M. Giudici, M. Marconi, A. Bartolo, N. Vigne, B. Chomet, A. Garnache, G. Beaudoin, I. Sagnes, Richard Burguete, Sarah Hammer, Jonathan Silver
https://arxiv.org/abs/2511.18231 https://arxiv.org/pdf/2511.18231 https://arxiv.org/html/2511.18231
arXiv:2511.18231v1 Announce Type: new
Abstract: The discovery of optical frequency combs (OFCs) has revolutionised science and technology by bridging electronics and photonics, driving major advances in precision measurements, atomic clocks, spectroscopy, telecommunications, and astronomy. However, current OFC systems still require further development to enable broader adoption in fields such as communication, aerospace, defence, and healthcare. There is a growing need for compact, portable OFCs that deliver high output power, robust self-referencing, and application-specific spectral coverage. On the conceptual side, progress toward such systems is hindered by an incomplete understanding of the fundamental principles governing OFC generation in emerging devices and materials, as well as evolving insights into the interplay between soliton and mode-locking effects. This roadmap presents the vision of a diverse group of academic and industry researchers and educators from Europe, along with their collaborators, on the current status and future directions of OFC science. It highlights a multidisciplinary approach that integrates novel physics, engineering innovation, and advanced researcher training. Topics include advances in soliton science as it relates to OFCs, the extension of OFC spectra into the visible and mid-infrared ranges, metrology applications and noise performance of integrated OFC sources, new fibre-based OFC modules, OFC lasers and OFC applications in astronomy.
toXiv_bot_toot

This week's climate solutions digest: https://www.forpeopleandpla.net/weekly-climate-solutions-digest-9/

Weekly Climate Solutions Digest
Welcome November settles in and the light turns precise. It feels like the world is quietly organizing itself. Two threads run together in this week’s stories: scale and precision. Gigawatts move from headline to hardware, as Germany advances a grid-scale battery in Jänschwalde and Uzbekistan lines up solar across

Watch this if you haven’t already.
The history, design and precision of the machines that are needed to produce our tiny computer chips at scale is wizardry. I can’t believe this technology is real. Truly mind blowing!
https://youtu.be/MiUHjLxm3V0

Precision measurement of the ground-state hyperfine constant for $^9Be^ $ in a linear Paul trap via magnetically insensitive hyperfine transitions
Zhi-yuan Ao, Wen-li Bai, Qian-yu Zhang, Wen-cui Peng, Xin Tong
https://arxiv.org/abs/2601.14811

🗺️ Multi-View Omnidirectional Vision and Structured Light for High-Precision Mapping and Reconstruction
#robotics

Sources: the US cyberattack that plunged Caracas into darkness during the Maduro mission shows its offensive capabilities; Senators plan to question officials (New York Times)
https://www.nytimes.com/2026/01/15/us/poli

Cyberattack in Venezuela Demonstrated Precision of U.S. Capabilities
Senators are expected to ask Lt. Gen. Joshua M. Rudd, President Trump’s nominee to lead the U.S. Cyber Command, about the mission in Caracas.

Walmart Precision Bombing
https://www.instagram.com/reel/DNJlzKWSKob/

#IsraelIsATerroristState

Historians: Quibbling Over Exact Definition Of Concentration Camp Sign Of Healthy Society
NEW HAVEN, CT—Calling such concern for linguistic precision a clear indicator of a thriving country, a panel of historians from Yale University issued a statement Thursday announcing that quibbling over the exact definition of a concentration camp was a sign of a healthy society. “Studies of the past tell us that nitpicking the particular semantics […]

BurnBot delivers scalable, precision fuels management to protect homes, infrastructure, and landscapes—before disaster strikes. https://burnbot.com/

Atomic and molecular systems for radiation thermometry
Stephen P. Eckel, Eric B. Norrgard, Christopher Holloway, Nikunjkumar Prajapati, Noah Schlossberger, Matthew Simons
https://arxiv.org/abs/2512.08668 https://arxiv.org/pdf/2512.08668 https://arxiv.org/html/2512.08668
arXiv:2512.08668v1 Announce Type: new
Abstract: Atoms and simple molecules are excellent candidates for new standards and sensors because they are both all identical and their properties are determined by the immutable laws of quantum physics. Here, we introduce the concept of building a standard and sensor of radiative temperature using atoms and molecules. Such standards are based on precise measurement of the rate at which blackbody radiation (BBR) either excites or stimulates emission for a given atomic transition. We summarize the recent results of two experiments while detailing the rate equation models required for their interpretation. The cold atom thermometer (CAT) uses a gas of laser cooled $^{85}$Rb Rydberg atoms to probe the BBR spectrum near 130~GHz. This primary, {\it i.e.}, not traceable to a measurement of like kind, temperature measurement currently has a total uncertainty of approximately 1~\%, with clear paths toward improvement. The compact blackbody radiation atomic sensor (CoBRAS) uses a vapour of $^{85}$Rb and monitors fluorescence from states that are either populated by BBR or populated by spontaneous emission to measure the blackbody spectrum near 24.5~THz. The CoBRAS has an excellent relative precision of $u(T)\approx 0.13$~K, with a clear path toward implementing a primary
toXiv_bot_toot

this week's climate solutions digest!
https://www.forpeopleandpla.net/weekly-climate-solutions-digest-9/

Weekly Climate Solutions Digest
Welcome November settles in and the light turns precise. It feels like the world is quietly organizing itself. Two threads run together in this week’s stories: scale and precision. Gigawatts move from headline to hardware, as Germany advances a grid-scale battery in Jänschwalde and Uzbekistan lines up solar across

Switzerland-based Mimic Robotics, which is building AI models to enable human-like robotic hands to adapt to complex, high-precision tasks, raised a $16M seed (Kyt Dotson/SiliconANGLE)
https://siliconangle.com/2025/11/04/mimic-raises-16m-build-a…

Mimic raises $16M to build AI models for human-like robotic hands - SiliconANGLE
Mimic raises $16M to build AI models for human-like robotic hands - SiliconANGLE

Enhancing grasping ability with vibrational guidance for individuals who are blind or partially sighted https://www.nature.com/articles/s41598-025-21720-0 "Tactile sensory substitution, like auditory substitution, effectively compensates for lost vision by engaging cross-modal r…

Enhancing grasping ability with vibrational guidance for individuals who are blind or partially sighted - Scientific Reports
This study investigates the effectiveness of a vibrotactile bracelet in supporting goal-directed hand movements and grasping tasks for visually conditioned individuals. The research addresses the challenge of object manipulation without visual feedback, comparing tactile to auditory cues. The primary research question explores whether vibrotactile signals delivered via a wrist-worn device can accurately guide hand movements and improve grasping precision. Forty-one participants with varying deg…

Incoherent repumping scheme in the $^{88}$Sr$^{ }$ five-level manifold
Valentin Martimort, Sacha Guesne, Derwell Drapier, Vincent Tugaye, Lilay Gros-Desormeaux, Valentin Cambier, Albane Douillet, Luca Guidoni, Jean-Pierre Likforman
https://arxiv.org/abs/2512.08710 https://arxiv.org/pdf/2512.08710 https://arxiv.org/html/2512.08710
arXiv:2512.08710v1 Announce Type: new
Abstract: Laser-cooled trapped ions are at the heart of modern quantum technologies and their cooling dynamics often deviate from the simplified two-level atom model. Doppler cooling of the $^{88}$Sr$^{ }$ ion involves several electronic levels and repumping channels that strongly influence fluorescence.In this work, we study a repumping scheme for the $^{88}$Sr$^{ }$ ion by combining precision single-ion spectroscopy with comprehensive numerical modeling based on optical Bloch equations including 18 Zeeman sublevels. We show that, although the observed fluorescence spectra retain a Lorentzian lineshape, their width and amplitude cannot be explained by a two-level atom description. Moreover, we find the optimal repumping conditions for maximizing the photon scattering rate.
toXiv_bot_toot

Towards precise synthetic neural codes: high-dimensional stimulation with flexible electrodes #BCI

Towards precise synthetic neural codes: high-dimensional stimulation with flexible electrodes - npj Flexible Electronics
Neural representations arise from high-dimensional population activity, but current neuromodulation methods lack the precision to write information into the central nervous system at this complexity. In this perspective, we propose high-dimensional stimulation as an approach to better approximate natural neural codes for brain-machine interfaces. Key advancements in resolution, coverage, and safety are essential, with flexible microelectrode arrays offering a promising path toward precise synth…

Precision continuous-wave laser measurement of the $\text{1}^\text{3}\text{S}_\text{1} \to \text{2}^\text{3}\text{S}_\text{1}$ interval in positronium
Lucas de Sousa Borges, Edward Thorpe-Woods, Evans Javary, Paolo Crivelli
https://arxiv.org/abs/2512.16018

Thermal one-loop self-energy correction for hydrogen-like systems: relativistic approach
M. Reiter, D. Solovyev, A. Bobylev, D. Glazov, T. Zalialiutdinov
https://arxiv.org/abs/2512.06828 https://arxiv.org/pdf/2512.06828 https://arxiv.org/html/2512.06828
arXiv:2512.06828v1 Announce Type: new
Abstract: Within a fully relativistic framework, the one-loop self-energy correction for a bound electron is derived and extended to incorporate the effects of external thermal radiation. In a series of previous works, it was shown that in quantum electrodynamics at finite temperature (QED), the description of effects caused by blackbody radiation can be reduced to using the thermal part of the photon propagator. As a consequence of the non-relativistic approximation in the calculation of the thermal one-loop self-energy correction, well-known quantum-mechanical (QM) phenomena emerge at successive orders: the Stark effect arises at leading order in $\alpha Z$, the Zeeman effect appears in the next-to-leading non-relativistic correction, accompanied by diamagnetic contributions and their relativistic refinements, among other perturbative corrections. The fully relativistic approach used in this work for calculating the SE contribution allows for accurate calculations of the thermal shift of atomic levels, in which all these effects are automatically taken into account. The hydrogen atom serves as the basis for testing a fully relativistic approach to such calculations. Additionally, an analysis is presented of the behavior of the thermal shift caused by the thermal one-loop correction to the self-energy of a bound electron for hydrogen-like ions with an arbitrary nuclear charge $Z$. The significance of these calculations lies in their relevance to contemporary high-precision experiments, where thermal radiation constitutes one of the major contributions to the overall uncertainty budget.
toXiv_bot_toot

Microwave electrometry with quantum-limited resolutions in a Rydberg atom array
Yao-Wen Zhang, De-Sheng Xiang, Ren Liao, Hao-Xiang Liu, Biao Xu, Peng Zhou, Yijia Zhou, Kuan Zhang, Lin Li
https://arxiv.org/abs/2512.05413 https://arxiv.org/pdf/2512.05413 https://arxiv.org/html/2512.05413
arXiv:2512.05413v1 Announce Type: new
Abstract: Microwave (MW) field sensing is foundational to modern technology, yet its evolution, reliant on classical antennas, is constrained by fundamental physical limits on field, temporal, and spatial resolutions. Here, we demonstrate an MW electrometry that simultaneously surpasses these constraints by using individual Rydberg atoms in an optical tweezer array as coherent sensors. This approach achieves a field sensitivity within 13% of the standard quantum limit, a response time that exceeds the Chu limit by more than 11 orders of magnitude, and in-situ near-field mapping with {\lambda}/3000 spatial resolution. This work establishes Rydberg-atom arrays as a powerful platform that unites quantum-limited sensitivity, nanosecond-scale response time, and sub-micrometer resolution, opening new avenues in quantum metrology and precision electromagnetic field imaging.
toXiv_bot_toot

Hyperfine-Resolved Spectroscopy of Dysprosium Monoxide (DyO) for Precision Measurements of the Nuclear Schiff Moment
Zack D. Lasner, Aidan T. Ohl, Nicole M. Albright, Kendall L. Rice, Charlene Peng, Lan Cheng, John M. Doyle, Benjamin L. Augenbraun
https://arxiv.org/abs/2511.11975

Endcap-Type Paul Trap for Precision Spectroscopy and Studies of Controlled Interactions
Anand Prakash, Akhil Ayyadevara, E. Krishnakumar, M. Ibrahim, K. M. Yatheendran, Subhadeep De, Sayan Patra, S. A. Rangwala
https://arxiv.org/abs/2601.07328

Cryogenic source of atomic tritium for precision spectroscopy and neutrino-mass measurements
Aleksei Semakin, Janne Ahokas, Tom Kiilerich, Sergey Vasiliev, Francois Nez, Pauline Yzombard, Valery Nesvizhevsky, Eberhard Widmann, Paolo Crivelli, Caroline Rodenbeck, Marco R\"ollig, Magnus Schl\"osser
https://arxiv.org/abs/2511.08313<…

Crosslisted article(s) found for physics.atom-ph. https://arxiv.org/list/physics.atom-ph/new
[1/1]:
- Subradiant collective states for precision sensing via transmission spectra
Diego Zafra-Bono, Oriol Rubies-Bigorda, Susanne F. Yelin