Study of decoherence suppression in quantum system under fluctuating environment
| Project/Area Number |
20740219
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Mathematical physics/Fundamental condensed matter physics
|
|---|
| Research Institution | Ochanomizu University |
|---|
Principal Investigator |
KITAJIMA Sachiko Ochanomizu University, 大学院・人間文化創成科学研究科, 准教授 (70334571)
|
|---|
| Research Collaborator |
SHIBATA Fumiaki お茶の水女子大学, 名誉教授 (20011702)
BAN Masashi お茶の水女子大学, 大学院・人間文化創成科学研究科, 教授 (50416955)
|
|---|
| Project Period (FY) |
2008 – 2009
|
| Project Status |
Completed (Fiscal Year 2009)
|
| Budget Amount *help |
¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2008: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
|
|---|
| Keywords | ディコヒーレンス / 緩和現象 / 量子確率過程 |
|---|
| Research Abstract |
We study decoherence and its suppression processes for a relevant spin (qubit) system surrounded by a stochastic environment, which is represented by a two-state jump Markov process and a Gauss-Markov process. Using the methods of non -equilibrium statistical physics, we obtain exactly the reduced density matrices and characteristic functions for a relevant system.
|
Report
(3 results)
Research Products
(5 results)
