| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
|
|---|
| Outline of Final Research Achievements |
We have constructed a fundamental theory for coherent terahertz-light control of superconductors’ pseudospins, which represent microscopic quantum states of superconductors. In multiorbital superconductors, pseudospins are interacting via Josephson coupling, with which we showed that one can induce collective motions of pseudospins such as Higgs and Leggett modes by nonlinear optical effects. For d-wave superconductors, we theoretically studied nonlinear terahertz Kerr effects, and observed d-wave Higgs mode experimentally for the first time.
|
