| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
Dynamics of superconductors in magnetic fields are governed by their "weak points", i.e. properties of topological defects. A topological defect in superconductors is quantized magnetic flux, which is also called quantum vortex because the quantized magnetic flux is the center of superconducting circular currents. The problem is "what is the force on quantum vortex in superconductors?". In classical fluids, vortex is subject to Magnus force while magnetic flux is often claimed to feel the Lorentz force due the external current. In this project, we find that the constitutive force of Magnus and Lorentz forces is the only physically meaningful force. Our results are based on the time-dependent-Ginzburg-Landau theory.
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