2016 Fiscal Year Final Research Report
A Study on quantization of flow of "information" in open quantum systems
| Project/Area Number |
15K05207
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Mathematical physics/Fundamental condensed matter physics
|
|---|
| Research Institution | University of Yamanashi |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
羽田野 直道 東京大学, 生産技術研究所, 准教授 (70251402)
|
|---|
| Research Collaborator |
Petrosky Tomio テキサス大学, 上級研究員
Vacchini Bassano ミラノ大学, 准教授
Olivieras Stefano ミラノ大学, 准教授
Guarnieri Giacomo ミラノ大学
|
|---|
| Project Period (FY) |
2015-04-01 – 2017-03-31
|
| Keywords | 量子開放系 / スピンーボソン系 |
|---|
| Outline of Final Research Achievements |
In this study, we obtained a formula to describe the dynamics of ``information” exchanged between the relevant system and environment in open quantum systems by considering that the energy quantum carry ``information”. The formula enables us to study on the energy flow dynamics, including the concrete process of back action. Applying the obtained formula to the spin-boson system, we clarified the dependence of the quantity of the energy backflow on the temperature of the environment and cut-off frequency of the spectral density of system-environment interaction. The obtained result is published as Physical Review A, Vol. 93 (2016) 012118 (1-10) under collaboration with Dr. Vacchini’s group in Univ. of Milan.
|
| Free Research Field |
非平衡統計物理学
|
