STRUCTURE SEARCH APPARATUS, METHOD, AND RECORDING MEDIUM

    公开(公告)号:US20200381078A1

    公开(公告)日:2020-12-03

    申请号:US16883314

    申请日:2020-05-26

    Inventor: Mari Ohfuchi

    Abstract: A structure formed with a plurality of molecules that have interactions is searched by a computer. The computer performs a process including: preparing position bits of a number calculated based on the number of constituent units included in the plurality of molecules and the number of molecules included in the plurality of molecules for each constituent unit in each molecule included in the plurality of molecules, and searching the structure formed with the plurality of molecules that have the interactions based on a cost function that includes (A-1) a negative interaction, (A-2) an original interaction, (B-1) a constraint that each of the constituent units in the one molecule exists in one of the position bits, and (B-2) a constraint that one or no constituent unit exists in any one of the plurality of molecules in the position bits.

    OPTIMIZATION DEVICE, OPTIMIZATION METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM FOR STORING OPTIMIZATION PROGRAM

    公开(公告)号:US20220027435A1

    公开(公告)日:2022-01-27

    申请号:US17225167

    申请日:2021-04-08

    Abstract: An optimization device is configured to perform an iteration processing until a predetermined condition is satisfied, the iteration processing including: processing of generating a quadratic function that is approximate to an objective function within a predetermined range from a first reference value that indicates a value of a variable of the objective function; processing of calculating a second reference value that indicates a value of the variable by seeking for an extreme value of the quadratic function; processing of calculating a third reference value that indicates a value of the variable based on the second reference value and the first reference value; and processing of updating the first reference value based on the third reference value, the predetermined condition being a condition regarding a distance between the first reference value and the second reference value or a distance between the first reference value and the third reference value.

    Spin filter and driving method thereof
    9.
    发明授权
    Spin filter and driving method thereof 有权
    旋转过滤器及其驱动方法

    公开(公告)号:US08860106B2

    公开(公告)日:2014-10-14

    申请号:US14053650

    申请日:2013-10-15

    Inventor: Mari Ohfuchi

    Abstract: A spin filter includes a first electrode configured to be formed with a zigzag graphene ribbon with an even number of rows extending in a first direction, and to have a magnetic moment in a second direction crossing with the first direction; a second electrode configured to be formed with a zigzag graphene ribbon with an even number of rows extending in the first direction, and to have a magnetic moment in the second direction; and a channel region configured to be placed between the first electrode and the second electrode, and to have an energy level allowing up-spin electrons or down-spin electrons to pass.

    Abstract translation: 旋转过滤器包括第一电极,其被配置为形成具有在第一方向上延伸的偶数行的锯齿状石墨烯带,并且具有与第一方向交叉的第二方向的磁矩; 第二电极,其被配置为形成具有在第一方向上延伸的偶数行的锯齿状石墨烯带,并且在第二方向上具有磁矩; 以及被配置为放置在第一电极和第二电极之间的通道区域,并且具有允许上自旋电子或向下自旋电子通过的能级。

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