Ultrastable optical clock with neutral atoms in an engineered light shift trap |
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Authors: | Katori Hidetoshi Takamoto Masao Pal'chikov V G Ovsiannikov V D |
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Affiliation: | Engineering Research Institute, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan. |
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Abstract: | An ultrastable optical clock based on neutral atoms trapped in an optical lattice is proposed. Complete control over the light shift is achieved by employing the 5s(2) 1S0-->5s5p 3P0 transition of 87Sr atoms as a "clock transition." Calculations of ac multipole polarizabilities and dipole hyperpolarizabilities for the clock transition indicate that the contribution of the higher-order light shifts can be reduced to less than 1 mHz, allowing for a projected accuracy of better than 10(-17). |
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