Nonequilibrium steady states in periodically driven systems

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K17718
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Mathematical physics/Fundamental condensed matter physics
• Research Institution: The University of Tokyo
• Principal Investigator: Mori Takashi 東京大学, 大学院理学系研究科(理学部), 助教 (00647761)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 周期駆動系 / フロケ理論 / 非平衡 / 統計物理学 / 熱平衡化

Outline of Final Research Achievements

Periodically driven systems thermally isolated from the environment exhibit remarkable properties that are not easily realized in equilibrium systems. However, the system will ultimately heat up to a high temperature state, which is disordered and featureless. It is not only a practically important problem but a theoretical challenge to understand how fast the heating occurs. This is a typical problem of nonequilibrium statistical physics.
We have shown that the heating becomes exponentially slow in the high frequency regime. Moreover, we studied the effect of the coupling to a thermal environment.

Free Research Field

統計物理学