| Budget Amount *help |
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2018: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2017: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2016: ¥8,320,000 (Direct Cost: ¥6,400,000、Indirect Cost: ¥1,920,000)
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| Outline of Final Research Achievements |
We demonstrated two approaches to solve spin glass problem by implementing it into physical systems. The first approach is to replace the spin glass to a coupled oscillator system and to calculate its lowest eigenmode. We evaluated the algorithm by comparing with the conventional simulated annealing algorithm and found that the calculation time can be reduced by one order. We proposed to implement the algorithm into a coupled plasmon particles, where the strength of inter-particle interaction can be autonomously modified through dielectric screening using a phase-change material to come to the optimized solution efficiently. The second approach is to utilize a buckled phase of two-dimensional colloidal crystal, which is equivalent to the frustrated triangular spin lattice. We experimentally demonstrated frustration behavior by confining 1-um polystyrene beads in a two-dimensional slit and visualized the annealing process to reach the lowest frustrated solution.
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