title: Ultrastable optical clock with neutral atoms in an engineered light shift trap.
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).
authors: Engineering Research Institute, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan.
authors: Hidetoshi
authors: H
authors: Katori
authors: Masao
authors: M
authors: Takamoto
authors: V G
authors: VG
authors: Pal'chikov
authors: V D
authors: VD
authors: Ovsiannikov