2014 Fiscal Year Final Research Report
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 |
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| Research Field |
Mathematical physics/Fundamental condensed matter physics
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| Research Institution | Gunma University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 物性基礎論 / 統計力学 / 量子情報理論 |
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| 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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| Free Research Field |
物理学
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