2012 Fiscal Year Final Research Report
Study of Ground-State Entanglement Breaking and Quantum Energy Teleportation
| Project/Area Number |
22540406
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Atomic/Molecular/Quantum electronics
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| Research Institution | Tohoku University |
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Principal Investigator |
HOTTA Masahiro 東北大学, 大学院・理学研究科, 助教 (60261541)
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| Project Period (FY) |
2010 – 2012
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| Keywords | (C)量子情報 |
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| Research Abstract |
A minimal model of quantum energy teleportation (QET) was constructed and energy-entanglement relations are discovered. In the quantum electromagnetic field system, it was proven that getting more information about the ground-state fluctuation leads to teleporting more energy by QET protocols. In general spin-chain systems, the energy-entanglement relations were obtained and show that the ground-state entanglement entropy is a upper bound of a quantity proportional to the square of the teleported energy. A realistic proposal for QET experiment was proposed using quantum Hall edge current. It was also verified that even for the systems in finite temperature QET remains effective.
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