Potential Surge Preheating: enhanced resonance from potential features

Autor: Saha, Pankaj, Urakawa, Yuko

We investigate the effects of local features in the inflationary potential on the preheating dynamics after inflation. We show that a small feature in the potential can enhance the resonance and bring the radiation-like state equation during preheati

Externí odkaz: http://arxiv.org/abs/2412.17359

g$\delta N$ formalism

Autor: Tanaka, Takahiro, Urakawa, Yuko

The $\delta N$ formalism has been the major computational tool to study the superhorizon evolution of the scalar type perturbation sourced by scalar fields. Recently, this formalism was generalized to compute an arbitrary scalar, vector, and tensor t

Externí odkaz: http://arxiv.org/abs/2408.13673

Scaling-up Memristor Monte Carlo with magnetic domain-wall physics

Autor: Dalgaty, Thomas, Yamada, Shogo, Molnos, Anca, Kawasaki, Eiji, Mesquida, Thomas, Rummens, François, Shibata, Tatsuo, Urakawa, Yukihiro, Terasaki, Yukio, Sasaki, Tomoyuki, Duranton, Marc

By exploiting the intrinsic random nature of nanoscale devices, Memristor Monte Carlo (MMC) is a promising enabler of edge learning systems. However, due to multiple algorithmic and device-level limitations, existing demonstrations have been restrict

Externí odkaz: http://arxiv.org/abs/2312.02771

Statistical anisotropy of primordial gravitational waves from generalized $\delta N$ formalism

Autor: Tanaka, Takahiro, Urakawa, Yuko

In this letter, we demonstrate how to use the generalized $\delta N$ formalism, which enables us to compute the evolution of all the large scale fluctuations, including gravitational waves, solely by solving the evolution of the background homogeneou

Externí odkaz: http://arxiv.org/abs/2309.08497

JASMINE: Near-Infrared Astrometry and Time Series Photometry Science

Autor: Kawata, Daisuke, Kawahara, Hajime, Gouda, Naoteru, Secrest, Nathan J., Kano, Ryouhei, Kataza, Hirokazu, Isobe, Naoki, Ohsawa, Ryou, Usui, Fumihiko, Yamada, Yoshiyuki, Graham, Alister W., Pettitt, Alex R., Asada, Hideki, Baba, Junichi, Bekki, Kenji, Dorland, Bryan N., Fujii, Michiko, Fukui, Akihiko, Hattori, Kohei, Hirano, Teruyuki, Kamizuka, Takafumi, Kashima, Shingo, Kawanaka, Norita, Kawashima, Yui, Klioner, Sergei A., Kodama, Takanori, Koshimoto, Naoki, Kotani, Takayuki, Kuzuhara, Masayuki, Levine, Stephen E., Majewski, Steven R., Masuda, Kento, Matsunaga, Noriyuki, Miyakawa, Kohei, Miyoshi, Makoko, Morihana, Kumiko, Nishi, Ryoichi, Notsu, Yuta, Omiya, Masashi, Sanders, Jason, Tanikawa, Ataru, Tsujimoto, Masahiro, Yano, Taihei, Aizawa, Masataka, Arimatsu, Ko, Biermann, Michael, Boehm, Celine, Chiba, Masashi, Debattista, Victor P., Gerhard, Ortwin, Hirabayashi, Masayuki, Hobbs, David, Ikenoue, Bungo, Izumiura, Hideyuki, Jordi, Carme, Kohara, Naoki, Löffler, Wolfgang, Luri, Xavier, Mase, Ichiro, Miglio, Andrea, Mitsuda, Kazuhisa, Newswander, Trent, Nishiyama, Shogo, Obuchi, Yoshiyuki, Ootsubo, Takafumi, Ouchi, Masami, Ozaki, Masanobu, Perryman, Michael, Prusti, Timo, Ramos, Pau, Read, Justin I., Rich, R. Michael, Schönrich, Ralph, Shikauchi, Minori, Shimizu, Risa, Suematsu, Yoshinori, Tada, Shotaro, Takahashi, Aoi, Tatekawa, Takayuki, Tatsumi, Daisuke, Tsujimoto, Takuji, Tsuzuki, Toshihiro, Urakawa, Seitaro, Uraguchi, Fumihiro, Utsunomiya, Shin, Van Eylen, Vincent, van Leeuwen, Floor, Wada, Takehiko, Walton, Nicholas A.

Japan Astrometry Satellite Mission for INfrared Exploration (JASMINE) is a planned M-class science space mission by the Institute of Space and Astronautical Science, the Japan Aerospace Exploration Agency. JASMINE has two main science goals. One is t

Externí odkaz: http://arxiv.org/abs/2307.05666