| Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
I have mainly studied time evolution of two isolated quantum subsystems that are created by coherently splitting a single quantum system. In particular, I have investigated the mechanism of "entanglement prethermalization", which occurs when the quantum entanglement between the subsystems prevents the total system from reaching the thermal equilibrium. I have studied two models, the interacting two harmonic oscillators and the Tomonaga-Luttinger model, and identified the statistical-mechanical ensemble which describes the quasi-stationary state after entanglement prethermalizaiton. The ensemble has turned out to be the generalized Gibbs ensemble, where the nonlocal conserved quantities acting on both subsystems are taken into consideration.
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