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Design of Quantum Information Processing Devices Utilizing Electron Spins by Electric and Magnetic Fields

Research Project

Project/Area Number 14076216
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionKEIO UNIVERSITY

Principal Investigator

ETO Mikio  Keio University, Faculty of Science and Thchnology, Associate professor, 理工学部, 助教授 (00221812)

Project Period (FY) 2002 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥20,100,000 (Direct Cost: ¥20,100,000)
Fiscal Year 2005: ¥5,100,000 (Direct Cost: ¥5,100,000)
Fiscal Year 2004: ¥10,200,000 (Direct Cost: ¥10,200,000)
Fiscal Year 2003: ¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 2002: ¥2,400,000 (Direct Cost: ¥2,400,000)
Keywordsquantum dot / quantum information processing / quantum point contact / silicon / hyperfine interaction / dephasing / spin-orbit interaction / entanglement / 量子情報デバイス / 量子演算 / スピン注入 / 近藤効果 / 量子コンピューター / シリコン量子ドット / ファノ共鳴 / 希薄磁性半導体 / ポイントコンタクト
Research Abstract

From a viewpoint of application to quantum information processing, we have performed various basic researches to control electron spins in semiconductor quantum dots. 1. We have proposed a new idea of spin injection using a small constriction, quantum point contact (QPC), fabricated on semiconductors. Neither magnetic fields nor magnetic materials are required. By numerical studies of the transport through a QPC in the presence of spin-orbit interaction, we have shown that (i) the conductance quantization is observed, (ii) the current is spin-polarized in the transverse direction, and (iii) spin polarization of more than 50% can be realized in InGaAs heterostructures. 2. Electron spins have a long coherent time in silicon, which is an advantage for quantum information processing compared with compound semiconductors. We have numerically studied electronic states in silicon quantum dots, taking into account electron-electron interaction. We have shown that discrete energy levels are deg … More enerate reflecting a multi-valley structure of conduction band and, as 'a result, high spin states are easily realized. 3. Considering the hyperfine interaction between electron and nuclear spins in quantum dots, we have proposed an entanglement mechanism of nuclear spins driven by the electric current. Our mechanism is relevant to a leakage current in double quantum dots with Pauli spin-blockade. The current accompanied by the spin flip gradually increases a quantum correlation among nuclear spins, which markedly enhances the spin-flip rate of electrons and hence the leakage current. 4. We have investigated the dephasing effect by electron-phonon interaction on nonequilibrium-transport in an Aharonov-Bohm ring with an embedded quantum dot. Using nonequilibrium Green function, we have successfully explained the experimental result that an asymmetric shape of Fano resonance is changed to a symmetric shape under high bias voltages. 5. We have also performed numerical study of electric conductance through a QPC made of ferromagnetic metals, numerical simulation of quantum gate operations in coupled quantum dots, study of the influence of external electrodes on carbon nanotubes in single molecule devices, etc. Less

Report

(5 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (96 results)

All 2007 2006 2005 2004 2003 2002 Other

All Journal Article (84 results) Publications (12 results)

  • [Journal Article] Numerical simulation of spin-qubit operation in coupled quantum dots2007

    • Author(s)
      D.Goto, M.Eto
    • Journal Title

      Physica Status Solidi (c) 4

      Pages: 554-556

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Creation and detection of spin-polarized current using quantum point contact with spin-orbit interaction2007

    • Author(s)
      H.Yokouchi, M.Eto
    • Journal Title

      Physica Status Solidi (c) 4

      Pages: 557-559

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Spin splitting and Kondo effect in quantum dots coupled to noncollinear ferromagnetic leads2007

    • Author(s)
      D.Matsubayashi, M.Eto
    • Journal Title

      Physical Review B (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Nonequilibrium transport through coupled quantum dots with electron-phonon interaction2007

    • Author(s)
      A.Ueda, M.Eto
    • Journal Title

      New Journal of Physics (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Numerical simulation of spin-qubit operation in coupled quantum dots2007

    • Author(s)
      D.Goto, M.Eto
    • Journal Title

      Physica Status Solidi (c) Vol.4

      Pages: 554-556

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Creation and detection of spin-polarized current using quantum point contact with spin-orbit interaction2007

    • Author(s)
      H.Yokouchi, M.Eto
    • Journal Title

      Physica Status Solidi (c) Vol.4

      Pages: 557-559

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Resonant tunneling and Fano resonance in quantum dots with electron-Phonon interaction2006

    • Author(s)
      A.Ueda, M.Eto
    • Journal Title

      Physical Review B 73

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Numerical Studies of Kondo Effect Multilevel Quantum Dots2006

    • Author(s)
      T.Sato, M.Eto
    • Journal Title

      Proceedings of 24th Interational Conference on Low Temperature Physics

      Pages: 1380-1381

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Kondo Effect in Silicon Quantum Dots with Valley Degeneracy2006

    • Author(s)
      M.Eto, Y.Hada
    • Journal Title

      Proceedings of 24th International Conference on Low Temperature Physics

      Pages: 1382-1383

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Spin Filter using Semiconductor Point Contacts with Spin-Orbit Interaction2006

    • Author(s)
      M.eto, T.Hayashi, Y.Kurotani
    • Journal Title

      Proceedings of 24th International Conference on Low Temperature Physics

      Pages: 1516-1517

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Spin injection using quantum point contacts with spin-orbit interaction and its detection2006

    • Author(s)
      M.Eto, T.Hayashi, Y.Kurotani, H.Yokouchi
    • Journal Title

      Physica Status Solidi (c) 3

      Pages: 4168-4171

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Resonant tunneling and Fano resonance in quantum dots with electron-phonon interaction2006

    • Author(s)
      A.Ueda, M.Eto
    • Journal Title

      Physical Review B Vol.73

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Numerical Studies of Kondo Effect in Multilevel Quantum Dots2006

    • Author(s)
      T.Sato, M.Eto
    • Journal Title

      Proceedings of 24th International Conference on Low Temperature Physics

      Pages: 1380-1381

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Spin Filter using Semiconductor Point Contacts with Spin-Orbit Interaction2006

    • Author(s)
      M.Eto, T.Hayashi, Y.Kurotani
    • Journal Title

      Proceedings of 24th International Conference on Low Temperature Physics

      Pages: 1516-1517

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Spin injection using quantum point contacts with spin-orbit interaction and its detection2006

    • Author(s)
      M.Eto, T.Hayashi, Y.Kurotani, H.Yokouchi
    • Journal Title

      Physica Status Solidi (c) Vol.3

      Pages: 4168-4171

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Enhancement of Kondo Effect in Multilevel Quantum Dots2005

    • Author(s)
      M.Eto
    • Journal Title

      Joumal of the Physical Society of Japan 74

      Pages: 95-102

    • NAID

      110001979343

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Dephasing by electron-Phonon interaction in an AB ring with an embedded quantum dot2005

    • Author(s)
      A.Ueda, M.Eto
    • Journal Title

      Physica Status Solidi (b) 242

      Pages: 1219-1223

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Electronic States in Silicon Dot Devices2005

    • Author(s)
      Y.Hada, M.Eto
    • Journal Title

      Physica Status Solidi (b) 2

      Pages: 3035-3038

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Spin polarization at semiconductor contacts in absence of magnetic field2005

    • Author(s)
      M.Eto, T.Hayashi, Y.Kurotani
    • Journal Title

      Joumal of the Physical Society of Japan 74

      Pages: 1934-1937

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Numerical renormalization group studies quantum of SU(4) Kondo effect in quantum dots2005

    • Author(s)
      T.Sato, M.Eto
    • Journal Title

      Physica E 29

      Pages: 652-655

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 論文標題量子ポイントコンタクトを用いたスピン注入の方法2005

    • Author(s)
      江藤幹雄
    • Journal Title

      固体物理 40

      Pages: 955-961

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Enhancement of Kondo Effect in Multilevel Quantum Dots2005

    • Author(s)
      M.Eto
    • Journal Title

      Journal of the Physical Society of Japan Vol.74

      Pages: 95-102

    • NAID

      110001979343

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Dephasing by electron-phonon interaction in an AB ring with an embedded quantum dot2005

    • Author(s)
      A.Ueda, M.Eto
    • Journal Title

      Physica Status Solidi (b) Vol.242

      Pages: 1219-1223

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Electronic States in Silicon Quantum Dot Devices2005

    • Author(s)
      Y.Hada, M.Eto
    • Journal Title

      Physica Status Solidi (c) Vol.2

      Pages: 3035-3038

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Spin polarization at semiconductor point contacts in absence of magnetic field2005

    • Author(s)
      M.Eto, T.Hayashi, Y.Kurotani
    • Journal Title

      Journal of the Physical Society of Japan Vol.74

      Pages: 1934-1937

    • NAID

      110001979644

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Numerical renormalization group studies of SU(4) Kondo effect in quantum dots2005

    • Author(s)
      T.Sato, M.Eto
    • Journal Title

      Physica E Vol.29

      Pages: 652-655

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] "A Method of Spin Injection Using a Quantum Point Contact" (Japanese)2005

    • Author(s)
      M.Eto
    • Journal Title

      Solid State Physics Vol. 40

      Pages: 955-961

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Dephasing by electron-phonon interaction in an AB ring with an embedded quantum dot2005

    • Author(s)
      A.Ueda, M.Eto
    • Journal Title

      Physica Status Solidi (b) 242・6

      Pages: 1219-1223

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Electronic States in Silicon Quantum Dot Devices2005

    • Author(s)
      Y.Hada, M.Eto
    • Journal Title

      Physics Status Solidi (c) 2・8

      Pages: 3035-3038

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Spin polarization at semiconductor point contacts in absence of magnetic field2005

    • Author(s)
      M.Eto, T.Hayashi, Y.Kurotani
    • Journal Title

      Journal of the Physical Society of Japan 74・7

      Pages: 1934-1937

    • NAID

      110001979644

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Numerical renormalization group studies of SU(4) Kondo effect in quantum dots2005

    • Author(s)
      T.Sato, M.Eto
    • Journal Title

      Physics E 29・3-4

      Pages: 652-655

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 量子ポイントコンタクトを用いたスピン注入の方法2005

    • Author(s)
      江藤幹雄
    • Journal Title

      固体物理 40・12

      Pages: 955-961

    • NAID

      40007070738

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Enhancement of Kondo Effect in Multilevel Quantum Dots2005

    • Author(s)
      M.Eto
    • Journal Title

      Journal of the Physical Society of Japan 74・1

      Pages: 95-102

    • NAID

      110001979343

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Current-Induced Entanglement of Nuclear Spins in Quantum Dots2004

    • Author(s)
      M.eto, T.Ashiwa, M.Murata
    • Journal Title

      Journal of the Physical Society of Japan 73

      Pages: 307-310

    • NAID

      110001954730

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Exchange Coupling in Silicon Double Quantum Dots2004

    • Author(s)
      Y.Hada, M.Eto
    • Journal Title

      Japanese Joumal of Applied Physics 43

      Pages: 7329-7336

    • NAID

      10013746378

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Numerical studies of Transport Properties through Poini Contacts of Magnetic Metals2004

    • Author(s)
      K.Ueno, M.Eto
    • Journal Title

      Physica E 22

      Pages: 276-279

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Entanglement of Nuclear Spins in Spin-Blocked Quantum Dots2004

    • Author(s)
      M.Eto, T.Ashiwa, M.Murata
    • Journal Title

      Physica E 22

      Pages: 426-429

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary 2004 Annual Research Report
  • [Journal Article] Enhanced Kondo Effect via Tuned Orbital Degeneracy in a Spin 1/2 Artlficial Atom2004

    • Author(s)
      S.Sasaki, S.Amaha, N.Asakawa, M.Eto, S.Tarucha
    • Journal Title

      PHysical Review Letters 93

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Kondo Effect in Quantum Dots near Degeneracy2004

    • Author(s)
      M.Eto
    • Journal Title

      Proceedings of the Second Quantum-Transport Nano-Hana Interational Workshop (IPAP Conference Series 5)

      Pages: 25-29

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] SU(4) Kondo Effect in Quantum with Two Orbitals and Spin 1/22004

    • Author(s)
      M.Eto
    • Journal Title

      Proceedings of 27th Interational Conference on the hysics of Semiconductors

      Pages: 821-822

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Fano Resonance in Quantum Dots with Electron-Phonon Interaction2004

    • Author(s)
      A.Ueda, M.Eto
    • Journal Title

      Proceedings of 27th hitemational Conference on the physics of Semiconductors

      Pages: 1447-1448

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Current-Induced Entanglement of Nuclear Spins in Quantum Dots2004

    • Author(s)
      M.Eto, T.Ashiwa, M.Murata
    • Journal Title

      Journal of the Physical Society of Japan Vol.73

      Pages: 307-310

    • NAID

      110001954730

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Exchange Coupling in Silicon Double Quantum Dots2004

    • Author(s)
      Y.Hada, M.Eto
    • Journal Title

      Japanese Journal of Applied Physics Vol.43

      Pages: 7329-7336

    • NAID

      10013746378

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Numerical Studies of Transport Properties through Point Contacts of Magnetic Metals2004

    • Author(s)
      K.Ueno, M.Eto
    • Journal Title

      Physica E Vol.22

      Pages: 276-279

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Entanglement of Nuclear Spins in Spin-Blocked Quantum Dots2004

    • Author(s)
      M.Eto, T.Ashiwa, M.Murata
    • Journal Title

      Physica E Vol.22

      Pages: 426-429

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Enhanced Kond Effect via Tuned Orbital Degeneracy in a Spin 1/2 Artificial Atom2004

    • Author(s)
      S.Sasaki, S.Amaha, N.Asakawa, M.Eto, S.Tarucha
    • Journal Title

      Physical Review Letters Vol.93

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Kondo Effect in Quantum Dots near Orbital Degeneracy2004

    • Author(s)
      M.Eto
    • Journal Title

      Proceedings of the Second Quantum- Transport Nano-Hana International Workshop (IPAP Conference Series 5)

      Pages: 25-29

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] SU(4) Kondo Effect in Quantum Dots with Two Orbitals and Spin 1/22004

    • Author(s)
      M.Eto
    • Journal Title

      Proceedings of 27th International Conference on the Physics of Semiconductors

      Pages: 821-822

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Fano Resonance in Quantum Dots with Electron-Phonon Interaction2004

    • Author(s)
      A.Ueda, M.Eto
    • Journal Title

      Proceedings of 27th International Conference on the Physics of Semiconductors

      Pages: 1447-1448

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Exchange Coupling in Silicon Double Quantum Dots2004

    • Author(s)
      Y.Hada, M.Eto
    • Journal Title

      Japanese Journal of Applied Physics 43・10

      Pages: 7329-7336

    • NAID

      10013746378

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Numerical Studies of Transport Properties through Point Contacts of Magnetic Metals2004

    • Author(s)
      K.Ueno, M.Eto
    • Journal Title

      Physica E 22

      Pages: 276-279

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Enhanced Kondo Effect via Tuned Orbital Degeneracy in a Spin 1/2 Artificial Atom2004

    • Author(s)
      S.Sasaki, S.Amaha, N.Asakawa, M.Eto, S.Tarucha
    • Journal Title

      Physical Review Letters 93・1

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Kondo Effect in Quantum Dots near Orbital Degeneracy2004

    • Author(s)
      M.Eto
    • Journal Title

      Proceedings of the Second Quantum-Transport Nano-Hana International Workshop (IPAP Conference Series 5)

      Pages: 25-29

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Electronic States and Spin Configurations in Silicon Quantum Dots2003

    • Author(s)
      Y.Hada, M.Eto
    • Journal Title

      "Toward the Controllable Quantum″eds.H. Takayanagi and J. Nitta (World Scientific Publishing)

      Pages: 467-472

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Numerical Studies of Fano Resonance in Quantum Dots Embedded in AB Rings2003

    • Author(s)
      A.Ueda, I.Baba, K.Suzuki, M.Eto
    • Journal Title

      Journal of the Physical Society of Japan 72,suppl.A

      Pages: 157-158

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Effects of Polaron Formation in Semiconductor Quantum Dots on Transport Properties2003

    • Author(s)
      T.Tasai, M.Eto
    • Journal Title

      Journal of the Physical Society of Japan 72

      Pages: 1495-1500

    • NAID

      110001954566

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Mean-Field Calculations of Transport Properties through Magnetic Point Contacts2003

    • Author(s)
      K.Ueno, M.Eto
    • Journal Title

      Journal of the Physical Society of Japan 72

      Pages: 1501-1509

    • NAID

      110001954567

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Electronic States in Silicon Quantum Dots : Multivalley Artificial Atoms2003

    • Author(s)
      Y.Hada, M.Eto
    • Journal Title

      Physical Review B 68

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Multivalley Effect on Electronic States in Si Quantum Dots2003

    • Author(s)
      Y.Hada, M.Eto
    • Journal Title

      Physica E 17

      Pages: 24-25

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Size and Shape Dependence of Electronic States in Silicon Quantum Dots2003

    • Author(s)
      Y.Hada, M.Eto
    • Journal Title

      Physica Status Solidi (c) 0

      Pages: 1153-1156

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Modulation of Electronic States in Semiconducting Carbon-Nanotubes with External Electrodes2003

    • Author(s)
      M.Murata, M.Eto
    • Journal Title

      Physica E 17

      Pages: 384-385

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 量子ドットにおける核スピンのエンタングルメント機構2003

    • Author(s)
      江藤幹雄
    • Journal Title

      固体物理 38

      Pages: 725-732

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Electronic States and Spin Configurations in Silicon Quantum Dots2003

    • Author(s)
      Y.Hada, M.Eto
    • Journal Title

      "Toward the Controllable Quantum States" eds. H. Takayanagi and J. Nitta (World Scientific Publishing)

      Pages: 467-472

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Numerical Studies of Fano Resonance in Quantum Dots Embedded in AB Rings2003

    • Author(s)
      A.Ueda, I.Baba, K.Suzuki, M.Eto
    • Journal Title

      Journal of the Physical Society of Japan Vol.72, Suppl. A

      Pages: 157-158

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Effects of Polaron Formation in Semiconductor Quantum Dots on Transport Properties2003

    • Author(s)
      T.Tasai, M.Eto
    • Journal Title

      Journal of the Physical Society of Japan Vol.72

      Pages: 1495-1500

    • NAID

      110001954566

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Mean-Field Calculations of Transport Properties through Magnetic Point Contacts2003

    • Author(s)
      K.Ueno, M.Eto
    • Journal Title

      Journal of the Physical Society of Japan Vol.72

      Pages: 1501-1509

    • NAID

      110001954567

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Electronic States in Silicon Quantum Dots : Multivalley Artificial Atoms2003

    • Author(s)
      Y.Hada, M.Eto
    • Journal Title

      Physical Review B Vol.68

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Multivalley Effect on Electronic States in Si Quantu : Dots2003

    • Author(s)
      Y.Hada, M.Eto
    • Journal Title

      Physica E Vol.17

      Pages: 24-25

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Size and Shape Dependence of Electronic States in Silicon Quantum Dots2003

    • Author(s)
      Y.Hada, M.Eto
    • Journal Title

      Physica Status Solidi (c) Vol.0

      Pages: 1153-1156

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Modulation of Electronic States in Semiconductin Carbon-Nanotubes with External Electrodes2003

    • Author(s)
      M.Murata, M.Eto
    • Journal Title

      Physica E Vol.17

      Pages: 384-385

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] "A Mechanism of Spin Entanglement of Nuclear Spins in Quantun Dots" (Japanese)2003

    • Author(s)
      M.Eto
    • Journal Title

      Solid State Physics (Kotai Butsuri) Vol. 38

      Pages: 725-732

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Transport Properties through Atomic-Size Point Contacts of Multi-Band Metals2002

    • Author(s)
      K.Ueno, M.Eto, K.Kawamura
    • Journal Title

      Journal of the Physical Society of Japan 71

      Pages: 860-866

    • NAID

      110001971641

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Transport Properties through Atomic-Size Point Contacts of Multi-Band Metals2002

    • Author(s)
      K.Ueno, M.Eto, K.Kawamura
    • Journal Title

      Proceedings of 7th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology

      Pages: 229-232

    • NAID

      110001971641

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Transport Properties through Atomic-Size Point Contacts of Multi-Band Metals2002

    • Author(s)
      K.Ueno, M.Eto, K.Kawamura
    • Journal Title

      Journal of the Physical Society of Japan Vol.71

      Pages: 860-866

    • NAID

      110001971641

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Influence of Electron-Phonon Interaction on Fano Resonance in Aharonov-Bohm Interferometer

    • Author(s)
      A.Ueda, M.Eto
    • Journal Title

      Proceedings of 28th International Conference on the Physics of Semiconductors (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Kondo effect in quantum dots coupled to ferromagnetic leads : effect of noncolirnear magnetization

    • Author(s)
      D.Matsubayashi, M.Eto
    • Journal Title

      Proceedings of 28th International Conference on the Physics of Semiconductors (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Spin splitting and Kondo effect in quantum dots coupled to noncollinear ferromagnetic leads

    • Author(s)
      D.Matsubayashi, M.Eto
    • Journal Title

      Physical Review B (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Nonequilibrium transport through coupled quantum dots with electron-phonon interaction

    • Author(s)
      A.Ueda, M.Eto
    • Journal Title

      New Journal of Physics (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Influence of Electron-Phonon Interaction on Fano Resonance in Aharonov-Bohm Interferometer

    • Author(s)
      A.Ueda, M.Eto
    • Journal Title

      Proceedings of 28th International Conference on the Physics of Semiconductors (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Kondo effect in quantum dots coupled to ferromagnetic leads : effect of noncollinear magnetization

    • Author(s)
      D.Matsubayashi, M.Eto
    • Journal Title

      Proceedings of 28th International Conference on the Physics of Semiconductors (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Electronic States in Silicon Quantum Dot Devices

    • Author(s)
      Y.Hada, M.Eto
    • Journal Title

      Physica Status Solidi (c) (発表予定)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Dephasing by electron-phonon interaction in an AB ring with an embedded quantum dot

    • Author(s)
      A.Ueda, M.Eto
    • Journal Title

      Physica Status Solidi (c) (発表予定)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] SU(4) Kondo Effect in Quantum Dots with Two Orbitals and Spin 1/2

    • Author(s)
      M.Eto
    • Journal Title

      Proceedings of 27th International Conference on the Physics of Semiconductors (発表予定)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Fano resonance in quantum dots with electron-phonon interaction

    • Author(s)
      A.Ueda, M.Eto
    • Journal Title

      Proceedings of 27th International Conference on the Physics of Semiconductors (発表予定)

    • Related Report
      2004 Annual Research Report
  • [Publications] A.Ueda, I.Baba, K.Suzuki, M.Eto: "Numerical Studies of Fano Resonance in Quantum Dots Embedded in AB Rings"Journal of the Physical Society of Japan. 72巻suppl.A. 157-158 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] T.Tasai, M.Eto: "Effects of Polaron Formation in Semiconductor Quantum Dots on Transport Properties"Journal of the Physical Society of Japan. 72巻6号. 1495-1500 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.Ueno, M.Eto: "Mean-Field Calculations of Transport Properties through Magnetic Point Contacts"Journal of the Physical Society of Japan. 72巻6号. 1501-1509 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Y.Hada, M.Eto: "Electronic States in Silicon Quantum Dots : Multivalley Artificial Atoms"Physical Review B. 68巻15号. 155322/1-155322/7 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] M.Eto, T.Ashiwa, M.Murata: "Current-Induced Entanglement of Nuclear Spins in Quantum Dots"Journal of the Physical Society of Japan. 73巻2号. 307-310 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] M.Murata, M.Eto: "Modulation of Electronic States in Semiconducting Carbon-Nanotubes with External Electrodes"Physica E. 17巻. 384-385 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.Ueno, M.Eto, K.Kawamura: "Transport Properties through Atomic-Size Point Contacts of Multi-Band Metals"Journal of the Physical Society of Japan. 71巻3号. 860-866 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] K.Ueno, M.Eto, K.Kawamura: "Transport Properties through Atomic-Size Point Contacts of Multi-Band Metals"Proceedings of 7th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology. 229-232 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Y.Hada, M.Eto: "Electronic States and Spin Configurations in Silicon Quantum Dots""Toward the Controllable Quantum States"eds. H. Takayanagi and J. Nitta (World Scientific Publishing). 467-472 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Y.Hada, M.Eto: "Multivaley Effect on Electronic States in Si Quantum Dots"Physica E. (出版予定).

    • Related Report
      2002 Annual Research Report
  • [Publications] Y.Hada, M.Eto: "Size and shape dependence of electronic states in silicon quantum dots"Physica Status Solidi. (出版予定).

    • Related Report
      2002 Annual Research Report
  • [Publications] A.Ueda, I.Baba, K.Suzuki, M.Eto: "Numerical Studies of Fano Resonance in Quantum dots Embedded in AB Rings"Journal of the Physical Society of Japan. (出版予定).

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2018-03-28  

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