Search Results - "Katori, Hidetoshi"

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    Test of general relativity by a pair of transportable optical lattice clocks by Takamoto, Masao, Ushijima, Ichiro, Ohmae, Noriaki, Yahagi, Toshihiro, Kokado, Kensuke, Shinkai, Hisaaki, Katori, Hidetoshi

    Published in Nature photonics (01-07-2020)
    “…A clock at a higher altitude ticks faster than one at a lower altitude, in accordance with Einstein’s theory of general relativity. The outstanding stability…”
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    Exploring potential applications of optical lattice clocks in a plate subduction zone by Tanaka, Yoshiyuki, Katori, Hidetoshi

    Published in Journal of geodesy (01-08-2021)
    “…Optical clocks improved the accuracy of state-of-the-art cesium clocks by more than two orders of magnitude and enabled frequency comparison with a fractional…”
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    Cryogenic optical lattice clocks by Ushijima, Ichiro, Takamoto, Masao, Das, Manoj, Ohkubo, Takuya, Katori, Hidetoshi

    Published in Nature photonics (09-02-2015)
    “…A pair of 87 Sr optical lattice clocks with a statistical agreement of 2 × 10 −18 within 6,000 s has been developed. To this end, the behaviour of the…”
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    Operational Magic Intensity for Sr Optical Lattice Clocks by Ushijima, Ichiro, Takamoto, Masao, Katori, Hidetoshi

    Published in Physical review letters (28-12-2018)
    “…We experimentally investigate the lattice-induced light shift by the electric-quadrupole (E2) and magnetic-dipole (M1) polarizabilities and the…”
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    Direct measurement of the frequency ratio for Hg and Yb optical lattice clocks and closure of the Hg/Yb/Sr loop by Ohmae, Noriaki, Bregolin, Filippo, Nemitz, Nils, Katori, Hidetoshi

    Published in Optics express (11-05-2020)
    “…We performed the first direct measurement of the frequency ratio between a mercury ( Hg) and an ytterbium ( Yb) optical lattice clock to find ν /ν  = 2.177 473…”
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    Colloquium : Physics of optical lattice clocks by Derevianko, Andrei, Katori, Hidetoshi

    Published in Reviews of modern physics (03-05-2011)
    “…Recently invented and demonstrated optical lattice clocks hold great promise for improving the precision of modern time keeping. These clocks aim at the 10{sup…”
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    Quantum State Engineering and Precision Metrology Using State-Insensitive Light Traps by Ye, Jun, Kimble, H.J, Katori, Hidetoshi

    “…Precision metrology and quantum measurement often demand that matter be prepared in well-defined quantum states for both internal and external degrees of…”
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    Recoil-free spectroscopy of neutral Sr atoms in the Lamb-Dicke regime by Ido, Tetsuya, Katori, Hidetoshi

    Published in Physical review letters (01-08-2003)
    “…Recoil-free as well as Doppler-free spectroscopy was demonstrated on the 1S0-3P1 transition of Sr atoms confined in a one-dimensional optical lattice. By…”
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    Magic wavelength to make optical lattice clocks insensitive to atomic motion by Katori, Hidetoshi, Hashiguchi, Koji, Il'inova, E Yu, Ovsiannikov, V D

    Published in Physical review letters (09-10-2009)
    “…In a standing wave of light, a difference in spatial distributions of multipolar atom-field interactions may introduce atomic-motion dependent clock…”
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    Optical lattice clocks and quantum metrology by Katori, Hidetoshi

    Published in Nature photonics (01-04-2011)
    “…The 'magic wavelength' protocol has made it possible to design atomic clocks based on well-engineered perturbations. Such 'optical lattice clocks' will allow…”
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    Coherence of Spin-Polarized Fermions Interacting with a Clock Laser in a Stark-Shift-Free Optical Lattice by TAKAMOTO, Masao, KATORI, Hidetoshi

    Published in Journal of the Physical Society of Japan (01-01-2009)
    “…We investigated the coherence of spin-polarized 87Sr atoms trapped in a light-shift-free one-dimensional optical lattice during their interaction with a clock…”
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    30-km-long optical fiber link at 1397 nm for frequency comparison between distant strontium optical lattice clocks by Akatsuka, Tomoya, Ono, Hitomi, Hayashida, Keitaro, Araki, Kuniya, Takamoto, Masao, Takano, Tetsushi, Katori, Hidetoshi

    Published in Japanese Journal of Applied Physics (01-03-2014)
    “…We demonstrate a 30-km-long optical fiber link for frequency comparison between two strontium optical lattice clocks being developed at RIKEN and the…”
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    Optimal design of dipole potentials for efficient loading of Sr atoms by KATORI, H, IDO, T, KUWATA-GONOKAM, M

    Published in Journal of the Physical Society of Japan (01-08-1999)
    “…We propose and demonstrate a novel far-off-resonance optical dipole trap (FORT) that is compatible with Doppler cooling. Strontium atoms are magneto-optically…”
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    Tricks for ticks by Katori, Hidetoshi

    Published in Nature physics (01-04-2017)
    “…Optical-lattice clocks have pushed the limits of frequency measurement — to such an extent that a tiny difference in altitude affects the clock's tick rate, as…”
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    Frequency Metrology with Optical Lattice Clocks by Hong, Feng-Lei

    Published in Japanese Journal of Applied Physics (01-08-2010)
    “…The precision measurement of time and frequency is of great interest for a wide range of applications, including fundamental science and technologies that…”
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