Quantum state control with superconducting atom chips

• Project/Area Number: 21310084
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Microdevices/Nanodevices
• Research Institution: NTT Basic Research Laboratories
• Principal Investigator: MUKAI Tetsuya 日本電信電話株式会社NTT物性科学基礎研究所, 主任研究員 (70393775)
• Co-Investigator(Kenkyū-buntansha): SHIMIZU Fujio 電気通信大学, レーザー新世代研究センタ (00011156) ; HUFNAGEL Christoph 日本電信電話株式会社NTT物性科学基礎研究所, 研修生 (70470341)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000); Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2010: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000); Fiscal Year 2009: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
• Keywords: マイクロ光デバイス / アトムチップ / 極低音原子 / 原子トラップ / 超伝導永久電流 / 量子状態制御 / 極低温原子 / 超伝導磁束

Research Abstract

With a persistent current superconducting atom chip, which can trap atoms in a hundred kHz strong magnetic confinement, we achieved a Bose-Einstein condensate in rubidium atoms. We also invented a new stable trap for neutral atoms with magnetic fluxes pinned in a superconducting disc. With precise measurements of the critical change of the magnetic flux pattern, we clarified the condition to realize a stabile operation of the superconducting atom chips.

Research Products

• [Journal Article] Stable Neutral Atom Trap with a Thin Superconducting Disc (2009)
  • Author(s): Fujio Shimizu, Christoph Hufnagel, and Tetsuya Mukai
  • Journal Title: Physical Review Letters Volume: vol.103 Pages: 253002-253002
  • Peer Reviewed
• [Journal Article] Stability of a superconductive atom chip with persistent current (2009)
  • Author(s): Hufnagel Christoph, Tetsuya Mukai, and Fujio Shimizu
  • Journal Title: Physical Review A Volume: vol.79 Pages: 53641-53641
  • Peer Reviewed
• [Journal Article] Stable Neutral Atom Trap with a Thin Superconducting Disc (2009)
  • Author(s): 清水富士夫
  • Journal Title: Physical Review Letters 103 Pages: 253002-253002
  • Peer Reviewed
• [Journal Article] Stability of a superconductive atom chip with persistent current (2009)
  • Author(s): Christoph Hufnagel
  • Journal Title: Physical Review A 79 Pages: 53641-53641
  • Peer Reviewed
• [Presentation] 超伝導磁束で捕捉する原子・原子で見る超伝導磁束 (2012)
  • Author(s): 向井哲哉
  • Organizer: 阪大G-COE第6回領域融合ワークショップ
  • Place of Presentation: 大阪大学, Seminal Talk
  • Year and Date: 2012-04-12
• [Presentation] 超伝導アトムチップ近傍におけるトラップ寿命の測定 (2012)
  • Author(s): 丹治はるか,向井哲哉
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学
  • Year and Date: 2012-03-26
• [Presentation] 積層マイクロディスク型超伝導アトムチップ (2012)
  • Author(s): 向井哲哉,丹治はるか
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学
  • Year and Date: 2012-03-26
• [Presentation] Atom Interferometer on a Superconducting Atom Chip (2011)
  • Author(s): Hiromitsu Imai, Tetsuya Mukai
  • Organizer: FIRST project Annual meeting
  • Place of Presentation: 京都
  • Year and Date: 2011-12-13
• [Presentation] Trapping neutral atoms with a superconduct ing micro-disc array (2011)
  • Author(s): Haruka Tanji, Tetsuya Mukai
  • Organizer: FIRST project Annual meeting
  • Place of Presentation: 京都
  • Year and Date: 2011-12-13
• [Presentation] Superconducting atom chips towards quatum applications (2011)
  • Author(s): Tetsuya Mukai
  • Organizer: FIRST project Annual meeting
  • Place of Presentation: 京都
  • Year and Date: 2011-12-13
• [Presentation] コヒーレントに原子を輸送するための湾曲原子導波路 (2011)
  • Author(s): 向井哲哉,今井弘光
  • 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] Miniaturized Superconducting Atom Chips towards Exploring the Quantum (2011)
  • Author(s): Tetsuya Mukai
  • Organizer: 第5回量子サイバネティクス総括班会議
  • Place of Presentation: 京都
  • Year and Date: 2011-06-29
• [Presentation] Superconducting Atom Chip towards Single-mode Atomic Waveguide (2011)
  • Author(s): Tetsuya Mukai
  • Organizer: International Conference on Laser Spectroscopy 2011
  • Place of Presentation: Hameln Germany
  • Year and Date: 2011-05-31
• [Presentation] Superconducting Atom Chip towards Single-mode Atomic Waveguide (2011)
  • Author(s): Tetsuya Mukai
  • Organizer: International Conference on Laser Spectroscopy
  • Place of Presentation: Hameln, Germany
  • Year and Date: 2011-05-31
• [Presentation] Superconducting Atom Chip in NTT : from persistent current to flux investigation (2011)
  • Author(s): Tetsuya Mukai
  • Organizer: QC-Seminal in Eberhard Karls Universitat Tuebingen
  • Place of Presentation: Tuebingen Germany, Invited Talk
  • Year and Date: 2011-05-27
• [Presentation] Superconducting Atom Chips in NTT : from persistent current to flux investigation (2011)
  • Author(s): Tetsuya Mukai
  • Organizer: CQ-Seminal in Eberhard Karis Universitat Tuebingen
  • Place of Presentation: Tuebingen, Germany
  • Year and Date: 2011-05-27
• [Presentation] 超伝導磁束で捕捉する原子・原子で見る超伝導磁束 (2011)
  • Author(s): 向井哲哉
  • Organizer: 阪大G-COE第6回領域融合ワークショップ
  • Place of Presentation: 大阪大学
  • Year and Date: 2011-04-12
• [Presentation] 超伝導アトムチップを用いた単一モード原子導波路の開発 (2011)
  • Author(s): 向井哲哉
  • Organizer: 日本物理学会第66回年次大会
  • Place of Presentation: 日本物理学会Webpage公開(当初の予定:新潟大学)(大会は中止、発表は成立)
  • Year and Date: 2011-03-26
• [Presentation] Productive Role of Magnetic Fluxes on Superconducting Atom Chips (2011)
  • Author(s): Tetsuya Mukai
  • Organizer: International Symposium on Nanoscale Transport and Technology(ISNTT2011)
  • Place of Presentation: NTT厚木研究開発センター
  • Year and Date: 2011-01-12
• [Presentation] Productive Role of Magnetic Fluxes on Superconducting Atom Chips (2011)
  • Author(s): Tetsuya Mukai
  • Organizer: International Symposium on Nanoscale Transport and Technology 2011
  • Place of Presentation: Atsugi Japan, Contributed Talk We-15
  • Year and Date: 2011-01-11
• [Presentation] 超伝導アトムチップ (2010)
  • Author(s): 向井哲哉
  • Organizer: 量子エレクトロニクス研究会「冷却原子系で探求する新しい物理と極限的技術」
  • Place of Presentation: 上智大学軽井沢セミナーハウス, Invited Talk
  • Year and Date: 2010-12-18
• [Presentation] 超伝導アトムチップ (2010)
  • Author(s): 向井哲哉
  • Organizer: 応用物理学会量子エレクトロニクス研究会「冷却原子で探求する新しい物理と極限的技術」
  • Place of Presentation: 上智大学軽井沢セミナーハウス
  • Year and Date: 2010-12-18
• [Presentation] Atom Interferometer with a Superconducting Atom Chip (2010)
  • Author(s): Tetsuya Mukai
  • Organizer: FIRST Quantum Information Processing Project General Meeting 2010
  • Place of Presentation: ホテルニューフジヤ熱海
  • Year and Date: 2010-12-08
• [Presentation] Superconducting atom chips towards atom interferometers (2010)
  • Author(s): Tetsuya Mukai
  • Organizer: FIRST Quantum Information Processing Project General Meeting 2010
  • Place of Presentation: ホテルニューフジヤ熱海
  • Year and Date: 2010-12-08
• [Presentation] Superconducting Atom Chip as a Resource for Quantum Information Processing (2010)
  • Author(s): Tetsuya Mukai
  • Organizer: Updating Quantum Cryptography and Communications 2010
  • Place of Presentation: Tokyo Japan, Poster P-24
  • Year and Date: 2010-10-18
• [Presentation] Superconducting Atom Chips as a Resource for Quantum Information Processing (2010)
  • Author(s): Tetsuya Mukai
  • Organizer: Updating Quantum Cryptography and Communications 2010(UQCC2010)
  • Place of Presentation: ANAインターコンチネンタルホテル東京
  • Year and Date: 2010-10-18
• [Presentation] 冷却原子による超伝導磁束の計測 (2010)
  • Author(s): 向井哲哉
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学, 23aRD-5
  • Year and Date: 2010-09-23
• [Presentation] 冷却原子による超伝導磁束の計測 (2010)
  • Author(s): 向井哲哉
  • 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] Loss Mechanism of Superconducting Atom Chips (2010)
  • Author(s): Tetsuya Mukai, Christoph Hufnagel, and Fujio Shimizu
  • Organizer: 22nd International Conference on Atomic Physics 2010
  • Place of Presentation: Cairns Australia, Poster Tu71
  • Year and Date: 2010-07-26
• [Presentation] Loss Mechanism of Superconducting Atom Chips (2010)
  • Author(s): Tetsuya Mukai, Christoph Hufnagel, Fujio Shimizu
  • Organizer: 22^<nd> International Conference on Atomic Physics 2010(ICAP2010)
  • Place of Presentation: Cairns, Australia
  • Year and Date: 2010-07-26
• [Presentation] Superconducting Atom Chip (2010)
  • Author(s): Fujio Shimizu, Christoph Hufnagel, and Tetsuya Mukai
  • Organizer: 10th European Conference on Atoms Molecules and Photons 2010
  • Place of Presentation: Salamanca Spain, Poster P564
  • Year and Date: 2010-07-05
• [Presentation] Superconducting Atom Chip (2010)
  • Author(s): Fujio Shimizu, Christoph Hufnagel, Tetsuya Mukai
  • Organizer: 10^<th> European Conference on Atoms Molecules and Photons(ECAMP10)
  • Place of Presentation: Salamanca, Spain
  • Year and Date: 2010-07-05
• [Presentation] 中性原子を用いた量子情報処理へのアプローチ (2010)
  • Author(s): 向井哲哉
  • Organizer: 第7回原子・分子・光科学(AMO)討論会
  • Place of Presentation: つくば国際会議場, Invited Talk
  • Year and Date: 2010-06-11
• [Presentation] 中性原子を用いた量子情報処理へのアプローチ (2010)
  • Author(s): 向井哲哉
  • Organizer: 第7回原子・分子・光科学(AMO)討論会Session 2・原子・分子・イオンによる量子情報処理へのアプローチ
  • Place of Presentation: つくば国際会議場
  • Year and Date: 2010-06-11
• [Presentation] Stable Trap for Neutral Atoms with a Superconducting Disc (2010)
  • Author(s): Tetsuya Mukai
  • Organizer: The 41st Annual Meeting of the American Physical Society Division of Atomic, Molecular and Optical Physics
  • Place of Presentation: Houston USA, Contributed talk W5.00010
  • Year and Date: 2010-05-29
• [Presentation] Stable Trap for Neutral Atoms with a Superconducting Disc (2010)
  • Author(s): Tetsuya Mukai
  • Organizer: The 41^<st> Annual Meeting of the American Physical Society Division of Atomic, Molecular and Optical Physics(DAMOP)
  • Place of Presentation: Houston, USA
  • Year and Date: 2010-05-29
• [Presentation] Investigating Magnetic Flux with Superconducting Atom Chip (2010)
  • Author(s): Tetsuya Mukai
  • Organizer: JST CREST 2010 International Symposium on Physics of Quantum Technology
  • Place of Presentation: Tokyo Japan, Presentation ID : 7W-19
  • Year and Date: 2010-04-07
• [Presentation] Investigation Magnetic Flux with Superconducting Atom Chip (2010)
  • Author(s): Tetsuya Mukai
  • Organizer: JST CREST 2010 International Symposium on Physics of Quantum Technology
  • Place of Presentation: 一橋記念講堂
  • Year and Date: 2010-04-07
• [Presentation] 超伝導ディスクを用いた中性原子のトラップ (2010)
  • Author(s): 向井哲哉,フフナーゲルクリストフ,清水富士夫
  • Organizer: 日本物理学第65回年次大会
  • Place of Presentation: 岡山大学, 23aTD-7
  • Year and Date: 2010-03-23
• [Presentation] 超伝導ディスクを用いた中性原子のトラップ (2010)
  • Author(s): 向井哲哉
  • Organizer: 日本物理学会大65回年次大会
  • Place of Presentation: 岡山
  • Year and Date: 2010-03-23
• [Presentation] 超伝導アトムチップの捕捉安定性 (2009)
  • Author(s): 向井哲哉,フフナーゲルクリストフ,清水富士夫
  • Organizer: 日本物理学2009年秋季大会
  • Place of Presentation: 熊本大学, 27aZF-1
  • Year and Date: 2009-09-27
• [Presentation] 超伝導アトムチップの捕捉安定性 (2009)
  • Author(s): 向井哲哉
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本
  • Year and Date: 2009-09-27
• [Presentation] Trapping Stability of Superconductive Atom Chip (2009)
  • Author(s): 向井哲哉
  • Organizer: International Conference on Quantum Foundation and Technology
  • Place of Presentation: 上海(中国)
  • Year and Date: 2009-07-18
• [Presentation] Trapping Stability of Superconducting Atom Chip (2009)
  • Author(s): Tetsuya Mukai
  • Organizer: International Conference on Quantum Foundation and Technology : Frontier and Future
  • Place of Presentation: Shanghai China, Contributed Talk 16 : 20
  • Year and Date: 2009-07-17
• [Presentation] Superconductive Atom Chip towards Quantum Operations (2009)
  • Author(s): 向井哲哉
  • Organizer: The 12^<th> International Superconductive Electronics Conference
  • Place of Presentation: 福岡
  • Year and Date: 2009-06-17
• [Presentation] Superconductive Atom Chip towards Quantum Operations (2009)
  • Author(s): Tetsuya Mukai, Christoph Hufnagle, Kouichi Semba, and Fujio Shimizu
  • Organizer: The 12nd International Superconductive Electronics Conference
  • Place of Presentation: Fukuoka Japan, Contributed Talk SP-O2
  • Year and Date: 2009-06-16
• [Presentation] Superconductive Atom Chip : Property and Prospect (2009)
  • Author(s): Tetsuya Mukai, Christoph Hufnagle, and Fujio Shimizu
  • Organizer: 19th International Conference on Laser Spectroscopy
  • Place of Presentation: Hokkaido Japan, Poster II-10
  • Year and Date: 2009-06-09
• [Presentation] Superconductive Atom Chip : Property and Prospect (2009)
  • Author(s): 向井哲哉
  • Organizer: 19^<th> International Conference on Laser Spectroscopy
  • Place of Presentation: 北海道
  • Year and Date: 2009-06-09
• [Remarks] (1)向井哲哉,サイエンスアカデミー1 :「量子の不思議を体験してみよう」, 2011/10/11,青森県立三本木高等学校・附属中学校(SSH Super Science High School)アウトリーチ活動
• [Remarks] (2)向井哲哉,「アトムチップ」,総合デザイン工学特別講義A, 2009/5/15,慶應義塾大学理工学部アウトリーチ活動
• [Remarks] ホームページ情報
  • URL: http://www.brl.ntt.co.jp/people/tetsuya/exp/index-j.html
• [Remarks]
  • URL: http://www.brl.ntt.co.jp/people/tetsuya/exp/index-j.html
• [Remarks]
  • URL: http://www.brl.ntt.co.jp/people/tetsuya/exp/index-j.html
• [Patent(Industrial Property Rights)] 原子捕捉装置および原子捕捉方 (2011)
  • Inventor(s): 向井哲哉、丹治はるか
  • Industrial Property Rights Holder: 日本電信電話株式会社
  • Industrial Property Number: 2011-270105
  • Filing Date: 2011-12-09
• [Patent(Industrial Property Rights)] 原子捕捉装置および原子捕捉方法 (2011)
  • Inventor(s): 向井哲哉、丹治はるか
  • Industrial Property Rights Holder: 日本電信電話株式会社
  • Industrial Property Number: 2011-270105
  • Filing Date: 2011-12-09
• [Patent(Industrial Property Rights)] 原子捕捉装置および原子捕捉方法 (2010)
  • Inventor(s): 向井哲哉
  • Industrial Property Rights Holder: 日本電信電話株式会社
  • Industrial Property Number: 2010-027350
  • Filing Date: 2010-02-10