Quantum precision measurements using atom interferometers with quantum degenerated atoms

• Project/Area Number: 21244063
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Atomic/Molecular/Quantum electronics
• Research Institution: The University of Electro-Communications
• Principal Investigator: NAKAGAWA Kenichi 電気通信大学, レーザー新世代研究センター, 教授 (90217670)
• Co-Investigator(Kenkyū-buntansha): KISHIMOTO Tetsuo 電気通信大学, 先端領域教育研究センター, 特任准教授 (70420239)
• Project Period (FY): 2009 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥30,030,000 (Direct Cost: ¥23,100,000、Indirect Cost: ¥6,930,000); Fiscal Year 2011: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000); Fiscal Year 2010: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000); Fiscal Year 2009: ¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000)
• Keywords: 極低温原子 / ボース / アインシュタイン凝縮 / 原子干渉計 / 原子光学 / BEC / 量子計測

Research Abstract

We have developed various experimental methods using cold atoms towards the realization of the high precision quantum measurements based on using atom interferometers with quantum degenerated atoms, as follows. 1) We have developed a method for fast all-optical production of Rb BEC. 2) We observed a Rydberg blockade effect between two Rb atoms in a dipole trap. 3) We observed a enhanced momentum transport in cold Rb atoms using an phase modulated pulsed lattice potential. 4) We have developed a precision gravimeter using an atomic interferometer with laser cooled Rb atoms.

Research Products

• [Journal Article] Simple and Fast Production of Bose-Einstein Condensate in a 1 μm Cross-beam Dipole Trap (2012)
  • Author(s): Sanjay Kumar, Shuuichi Hirai, Yuuki Suzuki, Masahide Kachi, Mark Sadgrove, and Ken'ichi Nakagawa
  • Journal Title: J. Phys. Soc. Jpn. Volume: 81 Issue: 8 Pages: 84004-84004
  • DOI: 10.1143/jpsj.81.084004
  • Peer Reviewed
• [Journal Article] Phase-selected momentum transport in ultra-cold atoms (2012)
  • Author(s): Mark Sadgrove, Sandro Wimberger, and Ken'ichi Nakagawa
  • Journal Title: Eur. Phys. J. D Volume: 66 Issue: 6 Pages: 155-155
  • DOI: 10.1140/epjd/e2012-20578-6
  • Peer Reviewed
• [Journal Article] Phase-selected momentum transport in ultra-cold atoms (2012)
  • Author(s): Mark Sadgrove, Sandro Wimberger, Ken'ichi Nakagawa
  • Journal Title: European Physical Journal D Volume: (掲載決定)
  • Peer Reviewed
• [Journal Article] レーザー励起リドベルグ原子を用いた量子もつれ状態の生成とその量子情報への応用 (2011)
  • Author(s): 中川賢一
  • Journal Title: レーザー研究 Volume: 39 Pages: 904-904
  • NAID: 10030151913
  • Peer Reviewed
• [Journal Article] Fast externally triggered phase controller for an optical lattice (2011)
  • Author(s): Mark Sadgrove and Ken'ichi Nakagawa
  • Journal Title: Rev. Sci. Instrum. Volume: 82 Issue: 11 Pages: 113104-113104
  • DOI: 10.1063/1.3655447
  • Peer Reviewed
• [Journal Article] Fast, externally triggered, digital phase controller for an optical lattice (2011)
  • Author(s): Mark Sadgrove, Ken'ichi Nakagawa
  • Journal Title: REVIEW OF SCIENTIFIC INSTRUMENTS Volume: 82 Pages: 1131041-5
  • Peer Reviewed
• [Journal Article] Multi-particle entanglement in a one-dimensional optical lattice using Rydberg atom (2010)
  • Author(s): Zhanchun Zuo, Ken'ichi Nakagawa
  • Journal Title: Phys. Rev. A Volume: 82 Issue: 6 Pages: 62328-62328
  • DOI: 10.1103/physreva.82.062328
  • Peer Reviewed
• [Journal Article] Multi-particle entanglement in a one-dimensional optical lattice using Rydberg atom (2010)
  • Author(s): Zhanchun Zuo, Ken'ichi Nakagawa
  • Journal Title: Physical Review A Volume: 82 Pages: 62328-62328
  • Peer Reviewed
• [Journal Article] Single atom Rydberg excitation in a small dipole trap (2009)
  • Author(s): Zhanchun Zuo, Miho Fukusen, Yoshihito Tamaki, Tomoki Watanabe, Yusuke Nakagawa and Ken'ichi Nakagawa
  • Journal Title: Optics Express Volume: 17 Issue: 25 Pages: 22898-22905
  • DOI: 10.1364/oe.17.022898
  • Peer Reviewed
• [Journal Article] Noise induced resonance for atoms in a periodic potential (2009)
  • Author(s): Mark Sadgrove, Sanjay Kumar, and Ken'ichi Nakagawa
  • Journal Title: Phys. Rev. Lett. Volume: 103 Issue: 1 Pages: 10403-10403
  • DOI: 10.1103/physrevlett.103.010403
  • Peer Reviewed
• [Journal Article] Signal analysis with atom optics (2009)
  • Author(s): Mark Sadgrove, Sanjay Kumar, and Ken'ichi Nakagawa
  • Journal Title: Phys. Rev. A7 Volume: 9 Issue: 5 Pages: 53618-53618
  • DOI: 10.1103/physreva.79.053618
  • Peer Reviewed
• [Journal Article] Noise induced resonance for atoms in a periodic potential (2009)
  • Author(s): Mark Sadgrove, Sanjay Kumar, Ken'ichi Nakagawa
  • Journal Title: Phys.Rev.Lett. 103 Pages: 10403-10403
  • Peer Reviewed
• [Journal Article] Signal analysis with atom optics (2009)
  • Author(s): Mark Sadgrove, Sanjay Kumar, Ken'ichi Nakagawa
  • Journal Title: Phys.Rev.A 79 Pages: 53618-53618
  • Peer Reviewed
• [Journal Article] Single atom Rydberg excitation in a small dipole trap (2009)
  • Author(s): Zhanchun Zuo, Miho Fukusen, Yoshihito Tamaki, Tomoki Watanabe, Yusuke Nakagawa, Ken'ichi Nakagawa
  • Journal Title: Optics Express 17 Pages: 22898-22905
  • Peer Reviewed
• [Presentation] All-Optical Realization of a Bose-Einstein Condensation in a 1 μm Dipole trap (2012)
  • Author(s): Sanjay Kumar, Mark Sadgrove, Yuuki Suzuki, and Ken'ichi Nakagawa
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学
• [Presentation] Distribution of interacting atoms in a one-demensional lattic (2011)
  • Author(s): Zhanchun Zuo, Saisuke Okuyama, Ken'ichi Nakagawa
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-24
• [Presentation] Rydberg Blockadeを用いた二個の基底状態原子間のエンタングルメントの生成 (2011)
  • Author(s): 小林康行、Zhanchun Zuo、奥山大輔、中川賢一
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 関西学院大学
  • Year and Date: 2011-09-24
• [Presentation] Large Are Interferometry for Gravimetry (2011)
  • Author(s): Sanjay Kumar, Mark Sadgrove, and Ken'ichi Nakagawa
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学
• [Presentation] 位相変調された定在波ポテンシャル中原子の古典エネルギー限界超越 (2011)
  • Author(s): Mark Sadgrove, Sandro Winberger, and Ken'ichi Nakagawa
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学
• [Presentation] Distribution of interacting atoms in a one-demensional lattice (2011)
  • Author(s): Zhanchun Zuo, Saisuke Okuyama, and Ken'ichi Nakagawa
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学
• [Presentation] 全光学的手法によるBEC生成に向けた低速原子源開発 (2010)
  • Author(s): 平井秀一、牟田真弓、中川賢一
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2010-09-23
• [Presentation] Study of cold atoms in optical lattice at quantum resonance with decoherence (2010)
  • Author(s): S. Kunar, M. Sadgrove, K. Nakagawa
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学
• [Presentation] Towards the observation of amphibious eigenstates with cold atoms (2010)
  • Author(s): M. Sadgrove, K. Nakagawa
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学
• [Presentation] 全光学的手法によるBEC 生成に向けた低速原子源開発 (2010)
  • Author(s): 平井秀一、牟田真弓、中川賢一
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学