Control of topology of quantum systems by energy-scale deformation and its application
Project/Area Number |
24740255
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Mathematical physics/Fundamental condensed matter physics
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Research Institution | Gunma University |
Principal Investigator |
|
Project Period (FY) |
2012-04-01 – 2015-03-31
|
Project Status |
Completed (Fiscal Year 2014)
|
Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
|
Keywords | 物性基礎論 / 統計力学 / 量子情報理論 / 量子エレクトロニクス |
Outline of Final Research Achievements |
We study quantum many-body systems under an energy-scale deformation, in which the scale of local Hamiltonian is modified spatially. It has been shown that the sine-alpha deformation generates a strong entanglement between two parties located at open edges of a one-dimensional quantum system. We have clarified temperature and system-size dependences of the edge-to-edge entanglement of systems under the sine-alpha deformation. We have then discussed the possible application of the energy-scale deformation to quantum-information processing such as quantum teleportation. A method to generate novel quantum many-body states by controlling model parameters spatially and temporally is also proposed.
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Report
(4 results)
Research Products
(14 results)