Theoretical study of the new phenomena of the ultra-cold atom gases with laser field

• Project/Area Number: 23840034
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Atomic/Molecular/Quantum electronics
• Research Institution: Gakushuin University
• Principal Investigator: TAKAHASHI Masahiro 学習院大学, 理学部物理学科, 助教 (00613697)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: ボーズ・アインシュタイン凝縮 / 超流動 / 準周期 / 非線形シュレディンガー方程式 / マルチバンド / 超伝導 / FFLO / 準周期系 / 非線形Schroedinger方程式

Research Abstract

It is theoretically showed that the critical states of the atomic gases exist under the quasi-periodic potential made by the laser field. The FFLO states in which the order parameters of the superconductivity modulate in space are studied in multi-band superconductors. The new phases of the FFLO states are predicted via 1storder transitions.

Research Products

• [Journal Article] Multifractals competing with solitons on Fibonacci optical lattices (2012)
  • Author(s): M. Takahashi, H. Katsura, M. Kohmoto, and T. Koma
  • Journal Title: New J. Phys Volume: 14 Issue: 11 Pages: 113012-113012
  • DOI: 10.1088/1367-2630/14/11/113012
  • Peer Reviewed
• [Journal Article] Multifractals Competing with Solitons on Fibonacci Optical Lattice (2011)
  • Author(s): M.Takahashi, H.Katsura, M.Kohmoto, T.Koma
  • Journal Title: arXiv
• [Presentation] Multiple Phase Transition of the Fulde-Ferrell-Larkin-Ovchinnikov States in two-band Superconductors (2013)
  • Author(s): M. Takahashi
  • Organizer: APS March meeting 2013
  • Place of Presentation: Maryland, USA
• [Presentation] バンド超伝導体における FFLO 多重相転移 (2013)
  • Author(s): 高橋雅裕
  • Organizer: 日本物理学会2013 年年次大会
  • Place of Presentation: 広島大学、広島県
• [Presentation] 2 バンド超伝導体における FFLO 多重相転移 (2013)
  • Author(s): 高橋雅裕
  • Organizer: 日本物理学会 2013 年年次大会
  • Place of Presentation: 広島大学、広島県
• [Presentation] Multifractals in Soliton sea on Fibonacci Lattice (2012)
  • Author(s): Masahiro Takahashi, Hosho Katsura, Mahito Kohmoto, Tohru Koma
  • Organizer: アメリカ物理学会March Meeting
  • Place of Presentation: アメリカ・ボストン
  • Year and Date: 2012-02-28
• [Presentation] Multifractals in Soliton Sea (2012)
  • Author(s): 高橋雅裕、桂法称、甲元眞人、高麗徹
  • Organizer: Ultracold Gases: Superfluidity and Strong Correlations (USS-2012)
  • Place of Presentation: 東京理科大学、東京
  • Year and Date: 2012-01-11
• [Presentation] Multifractals in Soliton Sea (2012)
  • Author(s): 高橋雅裕、桂法称、甲元眞人、高麗徹
  • Organizer: Ultracold Gases : Superfluidity and Strong Correlations (USS-2012)
  • Place of Presentation: 東京・東京理科大学
  • Year and Date: 2012-01-11
• [Presentation] Multifractals in Soliton sea on Fibonacci Lattice (2012)
  • Author(s): Masahiro Takahashi、Hosho Katsura、Mahito Kohmoto、Tohru Koma
  • Organizer: APS March meeting 2012、Boston, USAM. Takahashi、Robust Critical States Appear in UltraCold Atom Gases、The 23rdInternational Conference on Atomic Physics
  • Place of Presentation: Palaiseau, France
• [Presentation] バンド超伝導体における FFLO 領域の拡大 (2012)
  • Author(s): 高橋雅裕
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 横浜国立大学、神奈川県
• [Presentation] Robust Critical States Appear in Ultra-Cold Atom Gases (2012)
  • Author(s): M. Takahashi
  • Organizer: The 23rd International Conference on Atomic Physics
  • Place of Presentation: Palaiseau, France
• [Presentation] 2 バンド超伝導体における FFLO 領域の拡大 (2012)
  • Author(s): 高橋雅裕
  • Organizer: 日本物理学会 2012 年秋季大会
  • Place of Presentation: 横浜国立大学、神奈川県
• [Presentation] Fibonacci 格子上の極低温原子気体の数値解析 (2011)
  • Author(s): 高橋雅裕、桂法称、甲元眞人、高麗徹
  • Organizer: 日本物理学会 2011 年秋季大会
  • Place of Presentation: 富山大学、富山
  • Year and Date: 2011-09-21
• [Presentation] Fibonacci格子上の極低温原子気体の数値解析 (2011)
  • Author(s): 高橋雅裕、桂法称、甲元眞人、高麗徹
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山・県富山大学
  • Year and Date: 2011-09-21