Search Results - "Nagata, Yugo"

Positronium transmission through graphene thin films supported with lacy carbon in the energy range of a few keV by Mikami, Riki, Nagata, Yugo, Sada, Yuhi, Nagashima, Yasuyuki

“…We studied the transmission of positronium through thin graphene films supported with lacy carbon using an energy-tunable positronium beam recently developed…”
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A novel property of anti-Helmholz coils for in-coil syntheses of antihydrogen atoms: formation of a focused spin-polarized beam by Nagata, Yugo, Yamazaki, Yasunori

“…We demonstrate here that cold antihydrogen beams formed and extracted from a cusp magnet (anti-Helmholtz coils) are well focused and spin-polarized. A new…”
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Detection of radiation torque exerted on an alkali-metal vapor cell by Hatakeyama, Atsushi, Yasuda, Runa, Goto, Yutaka, Chikakiyo, Natsumi, Kuroda, Takahiro, Nagata, Yugo

“…We have developed a torsion balance to detect the rotation of a cell containing spin-polarized gaseous atoms to study angular momentum transfer from gaseous…”
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Threshold Photodetachment Spectroscopy of the Positronium Negative Ion by Michishio, Koji, Kuma, Susumu, Nagata, Yugo, Chiari, Luca, Iizuka, Taro, Mikami, Riki, Azuma, Toshiyuki, Nagashima, Yasuyuki

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Optical and magnetic properties of a transparent garnet film for atomic physics experiments by Saito, Mari, Tajima, Ryoichi, Kiyosawa, Ryota, Nagata, Yugo, Shimada, Hiroyuki, Ishibashi, Takayuki, Hatakeyama, Atsushi

“…We investigated the optical and magnetic properties of a transparent magnetic garnet with a particular focus on its applications to atomic physics experiments…”
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Threshold Photodetachment Spectroscopy of the Positronium Negative Ion by Michishio, Koji, Kuma, Susumu, Nagata, Yugo, Chiari, Luca, Iizuka, Taro, Mikami, Riki, Azuma, Toshiyuki, Nagashima, Yasuyuki

“…Threshold photodetachment spectroscopy of the positronium negative ion has been accomplished for the first time employing an efficient source of the ions and…”
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Synthesis of antihydrogen atoms in a CUSP trap by Kuroda, Naofumi, Enomoto, Yoshinori, Michishio, Koji, Kim, Chanhyoun, Higaki, Hiroyuki, Nagata, Yugo, Kanai, Yasuyuki, Torii, Hiroyuki A., Corradini, Maurizzio, Leali, Marco, Lodi-Rizzini, Evandro, Mascagna, Valerio, Venturelli, Luca, Zurlo, Nicola, Fujii, Koki, Ohtsuka, Miki, Tanaka, Kazuo, Imao, Hiroshi, Nagashima, Yasuyuki, Matsuda, Yasuyuki, Juhász, Bertalan, Widmann, Eberhard, Mohri, Akihiro, Yamazaki, Yasunori

“…ASACUSA collaboration has been making a path to realize high precision microwave spectroscopy of ground-state hyperfine transitions of antihydrogen atom in…”
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A semiclassical theory of crystal-assisted pair production: Beyond the uniform field approximation by Nagata, Yugo, Nitta, Hideo, Khokonov, Murat Kh

“…By applying the standard trajectory method [M.Kh. Khokonov, H. Nitta, Phys. Rev. Lett. 89 (2002) 094801], a simple expression is obtained for electron–positron…”
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Detection of radiation torque exerted on an alkali-metal vapor cell by Hatakeyama, Atsushi, Yasuda, Runa, Goto, Yutaka, Chikakiyo, Natsumi, Kuroda, Takahiro, Nagata, Yugo

“…AIP Advances 9, 075002 (2019) We have developed a torsion balance to detect the rotation of a cell containing spin-polarized gaseous atoms to study angular…”
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Theory of Čerenkov pair production by Nagata, Yugo, Nitta, Hideo

“…A theory of spontaneous pair production is developed for the inverse process of the Cerenkov radiation. In the case of a free-electron gas, this 'Cerenkov pair…”
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Prediction based segmentation of state space and application to a subgoal finding problem in reinforcement learning by Nagata, Y., Ohigashi, Y., Takahashi, H., Ishikawa, S., Omori, T., Morikawa, K.

“…Humans solve problems by segmenting perceived continuous phenomenon and searching for action in compressed problem space. In this paper, we propose a method…”
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