A Study on quantization of flow of "information" in open quantum systems
| Project/Area Number |
15K05207
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Mathematical physics/Fundamental condensed matter physics
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| Research Institution | University of Yamanashi |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
羽田野 直道 東京大学, 生産技術研究所, 准教授 (70251402)
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| 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
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | 量子開放系 / スピンーボソン系 / 量子熱流 / back action / 量子記憶効果 / 量子輸送 |
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| 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.
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Report
(3 results)
Research Products
(19 results)
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[Presentation] Arrow of Time in Quantum Mechanics2015
Author(s)
Naomichi Hatano,Gonzalo Ordonez
Organizer
International Symposium on Foundation of Quantum Transport in Nano Science
Place of Presentation
山梨大学（ 山梨県・ 甲府市）
Year and Date
2015-08-18
Related Report
Int'l Joint Research / Invited
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