Výsledky vyhledávání - "KOBAYASHI, Jun"

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Measurement of the variation of electron-to-proton mass ratio using ultracold molecules produced from laser-cooled atoms

Autor: Kobayashi, Jun, Ogino, Atsushi, Inouye, Shin

Publikováno v: Nature Communications volume 10, Article number: 3771 (2019)

Experimental techniques to manipulate cold molecules have seen great development in recent years. The precision measurements of cold molecules are expected to give insights into fundamental physics. We use a rovibrationally pure sample of ultracold K

Externí odkaz: http://arxiv.org/abs/1908.08722

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Current-feedback-stabilized laser system for quantum simulation experiments using Yb clock transition at 578 nm

Autor: Takata, Yoshihiro, Nakajima, Shuta, Kobayashi, Jun, Ono, Koki, Amano, Yoshiki, Takahashi, Yoshiro

Publikováno v: Review of Scientific Instruments 90, 083002 (2019)

We developed a laser system for the spectroscopy of the clock transition in ytterbium (Yb) atoms at 578 nm based on an interference-filter stabilized external-cavity diode laser (IFDL) emitting at 1156 nm. Owing to the improved frequency-to-current r

Externí odkaz: http://arxiv.org/abs/1905.05103

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Antiferromagnetic Interorbital Spin-Exchange Interaction of $^{171}$Yb

Autor: Ono, Koki, Kobayashi, Jun, Amano, Yoshiki, Sato, Koji, Takahashi, Yoshiro

Publikováno v: Phys. Rev. A 99, 032707 (2019)

We report on the investigation of the scattering properties between the ground state $^1S_0$ and the metastable state $^3P_0$ of the fermionic isotope of $^{171}$Yb. We successfully measure the $s$-wave scattering lengths in the two-orbital collision

Externí odkaz: http://arxiv.org/abs/1810.00536

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Experimental Determination of Bose-Hubbard Energies

Autor: Nakamura, Yusuke, Takasu, Yosuke, Kobayashi, Jun, Asaka, Hiroto, Fukushima, Yoshiaki, Inaba, Kensuke, Yamashita, Makoto, Takahashi, Yoshiro

Publikováno v: Phys. Rev. A 99, 033609 (2019)

We present the first experimental measurement of the ensemble averages of both the kinetic and interaction energies of the three-dimensional Bose--Hubbard model at finite temperature and various optical lattice depths across weakly to strongly intera

Externí odkaz: http://arxiv.org/abs/1808.04599

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