2011 Fiscal Year Final Research Report
Control of spin dynamics and quantum transport by periodic driving in one-dimensional quantum spin systems
| Project/Area Number |
21740289
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Mathematical physics/Fundamental condensed matter physics
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| Research Institution | Ochanomizu University |
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Principal Investigator |
KUDO Kazue お茶の水女子大学, お茶大アカデミック・プロダクション, 特任助教 (30505574)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 量子スピン系 / 冷却原子系 / 振動外場 / スピンダイナミクス |
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| Research Abstract |
We have investigated numerically and theoretically the quantum dynamics in one-dimensional quantum systems driven by time-periodic external fields. Our focus is on the control of quantum dynamics in a spatially periodic system driven by a time-periodic field. Out theoretical analysis based on quantum-classical correspondence provides an intuitive way to understand the quantum transport phenomenon. We have demonstrated that the effective group velocity, which is calculated from energy dispersion, well explains the wave-packet dynamics that was observed in experiments.
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