Tootfinder

Replaced article(s) found for gr-qc. https://arxiv.org/list/gr-qc/new
[3/3]:
- Self-gravitating strings and quantum effects in two-dimensional gravity
Akihiro Ishibashi, Yoshinori Matsuo, Akane Tanaka

The mass of TOI-654 b: A short-period sub-Neptune transiting a mid-M dwarf
Kai Ikuta, Norio Narita, Takuya Takarada, Teruyuki Hirano, Akihiko Fukui, Hiroyuki Tako Ishikawa, Yasunori Hori, Tadahiro Kimura, Takanori Kodama, Masahiro Ikoma, Jerome P. de Leon, Kiyoe Kawauchi, Masayuki Kuzuhara, Gaia Lacedelli, John H. Livingston, Mayuko Mori, Felipe Murgas, Enric Palle, Hannu Parviainen, Noriharu Watanabe, Izuru Fukuda, Hiroki Harakawa, Yuya Hayashi, Klaus Hodapp, Keisuke Isogai, Taiki Kag…

The mass of TOI-654 b: A short-period sub-Neptune transiting a mid-M dwarf
Sub-Neptunes are small planets between the size of the Earth and Neptune. The orbital and bulk properties of transiting sub-Neptunes can provide clues for their formation and evolution of small planets. In this paper, we report on follow-up observations of a planetary system around the mid-M dwarf TOI-654, whose transiting sub-Neptune TOI-654 b ($P=1.53$ day) is validated as a suitable target for the atmospheric observation. We measure the planetary mass and stellar properties with the InfraRed…

Quasiprobability Thermodynamic Uncertainty Relation
Kohei Yoshimura, Ryusuke Hamazaki
https://arxiv.org/abs/2508.14354 https://arxiv.org/pdf/2508.14354

Quasiprobability Thermodynamic Uncertainty Relation
We derive a quantum extension of the thermodynamic uncertainty relation where dynamical fluctuations are quantified by the Terletsky-Margenau-Hill quasiprobability, a quantum generalization of the classical joint probability. The obtained inequality plays a complementary role to existing quantum thermodynamic uncertainty relations, focusing on observables' change rather than exchange of charges through jumps and respecting initial coherence. Quasiprobabilities show anomalous behaviors that are …

Modeling of the positron sources: an experiment-based benchmarking
Fahad Alharthi, Iryna Chaikovska, Robert Chehab, Viktor Mytrochenko Fusashi Miyahara, Takuya Kamitani, Yoshinori Enomoto
https://arxiv.org/abs/2507.16702

Modeling of the positron sources: an experiment-based benchmarking
High-intensity positron sources are critical for next-generation electron-positron colliders, where positron beam quality and characteristics directly impact the luminosity. Accurate modeling and validated simulation tools for positron sources are essential to optimize their performance. However, modeling a positron source tends to be complex, as it involves multiple interdependent stages, from positron production and capture dynamics to beam transport through the injector linac to the collider…

Equal Treatment of Equals and Efficiency in Probabilistic Assignments
Yasunori Okumura
https://arxiv.org/abs/2508.14522 https://arxiv.org/pdf/2508.14522

Equal Treatment of Equals and Efficiency in Probabilistic Assignments
This paper studies general multi-unit probabilistic assignment problems involving indivisible objects, with a particular focus on achieving the fundamental fairness notion known as equal treatment of equals (ETE) and ensuring various notions of efficiency. We extend the definition of ETE so that it accommodates a variety of constraints and applications. We analyze the ETE reassignment procedure, which transforms any assignment into one satisfying ETE, and examine its compatibility with three ef…

Application of resource theory based on free Clifford kT computation to early fault-tolerant quantum computing
Yuya O. Nakagawa, Yasunori Lee
https://arxiv.org/abs/2508.14546 ht…

Application of resource theory based on free Clifford+kT computation to early fault-tolerant quantum computing
Recent advances in quantum hardware are bringing fault-tolerant quantum computing (FTQC) closer to reality. In the early stage of FTQC, however, the numbers of available logical qubits and high-fidelity $T$ gates remain limited, making it crucial to optimize the quantum resource usage. In this work, we aim to study the simulation cost of general quantum states under the constraint that only $k$ $T$ gates can be used, alongside an unlimited number of Clifford gates. Inspired by the notion of rob…

🇺🇦 #NowPlaying on BBCRadio3's #EssentialClassics
Meredith Monk, Lara Downes & Simone Dinnerstein:
🎵 Ellis Island for two pianos
#MeredithMonk #LaraDownes #SimoneDinnerstein
https://open.spotify.com/track/4yX088M1IRE9XxGuYkaGeW

Apparent Horizons Associated with Dynamical Black Hole Entropy
Hideo Furugori, Kanji Nishii, Daisuke Yoshida, Kaho Yoshimura
https://arxiv.org/abs/2507.14105

Apparent Horizons Associated with Dynamical Black Hole Entropy
We define entropic marginally outer trapped surfaces (E-MOTSs) as a generalization of apparent horizons. We then show that, under first-order perturbations around a stationary black hole, the dynamical black hole entropy proposed by Hollands, Wald, and Zhang, defined on a background Killing horizon, can be expressed as the Wall entropy evaluated on an E-MOTS associated with it. Our result ensures that the Hollands-Wald-Zhang entropy reduces to the standard Wald entropy in each stationary regime…

Delta Matters: An Analytically Tractable Model for $\beta$-$\delta$ Discounting Agents
Yasunori Akagi, Takeshi Kurashima
https://arxiv.org/abs/2509.13637 https://

Delta Matters: An Analytically Tractable Model for $β$-$δ$ Discounting Agents
Humans exhibit time-inconsistent behavior, in which planned actions diverge from executed actions. Understanding time inconsistency and designing appropriate interventions is a key research challenge in computer science and behavioral economics. Previous work focuses on progress-based tasks and derives a closed-form description of agent behavior, from which they obtain optimal intervention strategies. They model time-inconsistency using the $β$-$δ$ discounting (quasi-hyperbolic discounting), …

🇺🇦 #NowPlaying on BBCRadio3's #InTune
Parlow, Ivšn Fischer, Johannes Brahms & Budapest Festival Orchestra:
🎵 Hungarian Dance No 6
#Parlow #IvánFischer #JohannesBrahms #BudapestFestivalOrchestra
https://open.spotify.com/track/5KXT68M8YqHamRofUBsbFi