Zobrazeno 1 - 10
of 17 257
pro vyhledávání: '"ISHIKAWA, H."'
Autor:
Ishikawa, H.
Quantum theory, despite its remarkable success, struggles to represent certain experimental data, particularly those involving integer functions and deterministic relations between quantum jumps. We address this limitation by proposing a hidden varia
Externí odkaz:
http://arxiv.org/abs/2410.18324
Autor:
Okuma, R., Yamagami, K., Fujisawa, Y., Hsu, C. H., Obata, Y., Tomoda, N., Dronova, M., Kuroda, K., Ishikawa, H., Kawaguchi, K., Aido, K., Kindo, K., Chan, Y. H., Lin, H., Ihara, Y., Kondo, T., Okada, Y.
Analogous to the charged electron-electron pair condensation in superconductors, an excitonic insulator (EI) represents Fermi surface instability due to spontaneous formation and condensation of charge-neutral electron-hole pair (exciton). Unlike in
Externí odkaz:
http://arxiv.org/abs/2405.16781
Gliese 12 b: A temperate Earth-sized planet at 12 pc ideal for atmospheric transmission spectroscopy
Autor:
Kuzuhara, M., Fukui, A., Livingston, J. H., Caballero, J. A., de Leon, J. P., Hirano, T., Kasagi, Y., Murgas, F., Narita, N., Omiya, M., Orell-Miquel, Jaume, Palle, E., Changeat, Q., Esparza-Borges, E., Harakawa, H., Hellier, C., Hori, Yasunori, Ikuta, Kai, Ishikawa, H. T., Kodama, T., Kotani, T., Kudo, T., Morales, J. C., Mori, M., Nagel, E., Parviainen, H., Perdelwitz, V., Reiners, A., Ribas, I., Sanz-Forcada, J., Sato, B., Schweitzer, A., Tabernero, H. M., Takarada, T., Uyama, T., Watanabe, N., Zechmeister, M., García, N. Abreu, Aoki, W., Beichman, C., Béjar, V. J. S., Brandt, T. D., Calatayud-Borras, Y., Carleo, I., Charbonneau, D., Collins, K. A., Currie, T., Doty, J. P., Dreizler, S., Fernández-Rodríguez, G., Fukuda, I., Galán, D., Geraldía-González, S., González-Garcia, J., Hayashi, Y., Hedges, C., Henning, T., Hodapp, K., Ikoma, M., Isogai, K., Jacobson, S., Janson, M., Jenkins, J. M., Kagetani, T., Kambe, E., Kawai, Y., Kawauchi, K., Kokubo, E., Konishi, M., Korth, J., Krishnamurthy, V., Kurokawa, T., Kusakabe, N., Kwon, J., Laza-Ramos, A., Libotte, F., Luque, R., Madrigal-Aguado, A., Matsumoto, Y., Mawet, D., McElwain, M. W., Gallardo, P. P. Meni, Morello, G., Torres, S. Mu~noz, Nishikawa, J., Nugroho, S. K., Ogihara, M., Pel'aez-Torres, A., Rapetti, D., S'anchez-Benavente, M., Schlecker, M., Seager, S., Serabyn, E., Serizawa, T., Stangret, M., Takahashi, A., Teng, H., Tamura, M., Terada, Y., Ueda, A., Usuda, T., Vanderspek, R., Vievard, S., Watanabe, D., Winn, J. N., Osorio, M. R. Zapatero
Publikováno v:
Published on 2024 May 23 by Astrophysical Journal Letters (ApJL) 967 L21
Recent discoveries of Earth-sized planets transiting nearby M dwarfs have made it possible to characterize the atmospheres of terrestrial planets via follow-up spectroscopic observations. However, the number of such planets receiving low insolation i
Externí odkaz:
http://arxiv.org/abs/2405.14708
Autor:
Hori, Y., Fukui, A., Hirano, T., Narita, N., de Leon, J. P., Ishikawa, H. T., Hartman, J. D., Morello, G., García, N. Abreu, Hernández, L. Álvarez, Béjar, V. J. S., Calatayud-Borras, Y., Carleo, I., Enoc, G., Esparza-Borges, E., Fukuda, I., Galán, D., Geraldía-González, S., Hayashi, Y., Ikoma, M., Ikuta, K., Isogai, K., Kagetani, T., Kawai, Y., Kawauchi, K., Kimura, T., Kodama, T., Korth, J., Kusakabe, N., Laza-Ramos, A., Livingston, J. H., Luque, R., Miyakawa, K., Mori, M., Torres, S. Muñoz, Murgas, F., Orell-Miquel, J., Palle, E., Parviainen, H., Peláez-Torres, A., Puig-Subirá, M., Sánchez-Benavente, M., Sosa-Guillén, P., Stangret, M., Terada, Y., Watanabe, N., Bakos, G. Á., Barkaoui, K., Beichman, C., Benkhaldoun, Z., Boyle, A. W., Ciardi, D. R., Clark, C. A., Collins, K. A., Collins, K. I., Conti, D. M., Crossfield, I. J. M., Everett, M. E., Furlan, E., Ghachoui, M., Gillon, M., Gonzales, E. J., Higuera, J., Horne, K., Howell, S. B., Jehin, E., Lester, K. V., Lund, M. B., Matson, R., Matthews, E. C., Pozuelos, F. J., Safonov, B. S., Schlieder, J. E., Schwarz, R. P., Sefako, R., Srdoc, G., Strakhov, I. A., Waalkes, W. C., Ziegler, C., Charbonneau, D., Essack, Z., Timmermans, M., Guerrero, N. M., Harakawa, H., Hedges, C., Ishizuka, M., Jenkins, J. M., Konishi, M., Kotani, T., Kudo, T., Kurokawa, T., Kuzuhara, M., Nishikawa, J., Omiya, M., Ricker, G. R., Seager, S., Serizawa, T., Striegel, S., Tamura, M., Ueda, A., Vanderspek, R., Vievard, S., Winn, J. N.
Sub-Neptunes with $2-3R_\oplus$ are intermediate in size between rocky planets and Neptune-sized planets. The orbital properties and bulk compositions of transiting sub-Neptunes provide clues to the formation and evolution of close-in small planets.
Externí odkaz:
http://arxiv.org/abs/2405.12637
Autor:
Gen, M., Ishikawa, H., Miyake, A., Yajima, T., Jeschke, H. O., Sagayama, H., Ikeda, A., Matsuda, Y. H., Kindo, K., Tokunaga, M., Kohama, Y., Kurumaji, T., Tokunaga, Y., Arima, T.
Publikováno v:
Phys. Rev. Mater. 7, 104404 (2023)
We investigate the crystallographic and magnetic properties of a chromium-based thiospinel CuGaCr$_{4}$S$_{8}$. From a synchrotron x-ray diffraction experiment and structural refinement, Cu and Ga atoms are found to occupy the tetrahedral $A$-sites i
Externí odkaz:
http://arxiv.org/abs/2303.10671
Autor:
Gen, M., Ikeda, A., Aoyama, K., Jeschke, H. O., Ishii, Y., Ishikawa, H., Yajima, T., Okamoto, Y., Zhou, X. -G., Nakamura, D., Takeyama, S., Kindo, K., Matsuda, Y. H., Kohama, Y.
Publikováno v:
Proc. Natl. Acad. Sci. U.S.A. 120, e2302756120 (2023)
The mutual coupling of spin and lattice degrees of freedom is ubiquitous in magnetic materials and potentially creates exotic magnetic states in response to the external magnetic field. Particularly, geometrically frustrated magnets serve as a fertil
Externí odkaz:
http://arxiv.org/abs/2301.09509
Autor:
Oida, Y., Sakuragi, S., Igari, T., Nakajima, Y., Ro, E., Shimizu, F., Futami, M., Hakozaki, Y., Ohkubo, T., Ishikawa, H., Takada, S., Sawada, S., Murakami, K., Suzuki, K., Maruyama, I.
Finite element method (FEM) modeling of the volumetric expansion phenomenon associated with the accumulation of irradiation was performed on rocks in a concrete for nuclear power plant. The FEM mesh of sandstone, tuff, and granite was created based o
Externí odkaz:
http://arxiv.org/abs/2206.07140
Autor:
Kawauchi, K., Murgas, F., Palle, E., Narita, N., Fukui, A., Hirano, T., Parviainen, H., Ishikawa, H. T., Watanabe, N., Esparaza-Borges, E., Kuzuhara, M., Orell-Miquel, J., Krishnamurthy, V., Mori, M., Kagetani, T., Zou, Y., Isogai, K., Livingston, J. H., Howell, S. B., Crouzet, N., de Leon, J. P., Kimura, T., Kodama, T., Korth, J., Kurita, S., Laza-Ramos, A., Luque, R., Madrigal-Aguado, A., Miyakawa, K., Morello, G., Nishiumi, T., Rodríguez, G. E. F., Sánchez-Benavente, M., Stangret, M., Teng, H., Terada, Y., Gnilka, C. L., Guerrero, N., Harakawa, H., Hodapp, K., Hori, Y., Ikoma, M., Jacobson, S., Konishi, M., Kotani, T., Kudo, T., Kurokowa, T., Kusakabe, N., Nishikawa, J., Omiya, M., Serizawa, T., Tamura, M., Ueda, A., Vievard, S.
Publikováno v:
A&A 666, A4 (2022)
The NASA space telescope $TESS$ is currently in the extended mission of its all-sky search for new transiting planets. Of the thousands of candidates that TESS is expected to deliver, transiting planets orbiting nearby M dwarfs are particularly inter
Externí odkaz:
http://arxiv.org/abs/2202.10182
Autor:
Morello, G., Parviainen, H., Murgas, F., Pallé, E., Oshagh, M., Fukui, A., Hirano, T., Ishikawa, H. T., Mori, M., Narita, N., Collins, K. A., Barkaoui, K., Lewin, P., Cadieux, C., de Leon, J. P., Soubkiou, A., Garcia, N. Abreu, Crouzet, N., Esparza-Borges, E., Rodríguez, G. E. Fernández, Galán, D., Hori, Y., Ikoma, M., Isogai, K., Kagetani, T., Kawauchi, K., Kimura, T., Kodama, T., Korth, J., Kotani, T., Krishnamurthy, V., Kurita, S., Laza-Ramos, A., Livingston, J. H., Luque, R., Madrigal-Aguado, A., Nishiumi, T., Orell-Miquel, J., Puig-Subirà, M., Sánchez-Benavente, M., Stangret, M., Tamura, M., Terada, Y., Watanabe, N., Zou, Y., Benkhaldoun, Z., Collins, K. I., Doyon, R., Garcia, L., Ghachoui, M., Gillon, M., Jehin, E., Pozuelos, F. J., Schwarz, R. P., Timmermans, M.
Publikováno v:
A&A, 673, A32 (2023)
Context. Exoplanets with orbital periods of less than one day are known as ultra-short period (USP) planets. They are relatively rare products of planetary formation and evolution processes, but especially favourable for characterisation with current
Externí odkaz:
http://arxiv.org/abs/2201.13274
Autor:
Gen, M., Ishikawa, H., Ikeda, A., Miyake, A., Yang, Z., Okamoto, Y., Mori, M., Takenaka, K., Sagayama, H., Kurumaji, T., Tokunaga, Y., Arima, T., Tokunaga, M., Kindo, K., Matsuda, Y. H., Kohama, Y.
Frustrated magnets with a strong spin-lattice coupling can show rich magnetic phases and the associated fascinating phenomena. A promising platform is the breathing pyrochlore magnet CuInCr$_{4}$S$_{8}$ with localized $S=3/2$ Cr$^{3+}$ ions, which is
Externí odkaz:
http://arxiv.org/abs/2112.08990