3 papers
cs.RO2025
Certified Coil Geometry Learning for Short-Range Magnetic Actuation and Spacecraft Docking Application
Yuta Takahashi, Hayate Tajima, Shin-ichiro Sakai
This paper presents a learning-based framework for approximating an exact magnetic-field interaction model, supported by both numerical and experimental validation. High-fidelity m…
hep-th2025
Detector Based Evaluation of Extractable Entanglement in Flat spacetime
Hiromasa Tajima, Riku Yoshimoto, Ryo Nemoto +1
Entanglement entropy (EE) is widely used to quantify quantum correlations in field theory, with the well-known result in two-dimensional conformal field theory (CFT) predicting a l…
hep-th2024
Stochastic inflation and entropy bound in de Sitter spacetime
Hiromasa Tajima, Yasusada Nambu
We investigate the entropy dynamics of de Sitter spacetime during the inflationary phase. The cosmological horizon in de Sitter spacetime, which limits the causally accessible regi…