Towards observation of Hawking-Unruh radiations on earth

2011 Fiscal Year Final Research Report

• Project/Area Number: 22654030
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Single-year Grants
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Ritsumeikan University
• Principal Investigator: MATSUKI Seishi 立命館大学, 総合理工学研究機構, 教授 (50037941)
• Co-Investigator(Renkei-kenkyūsha): KIDO Yoshiaki 立命館大学, 理工学部, 教授 (40224993) ; YAMAMOTO Katsuji 京都大学, 工学研究科, 教授 (90191395)
• Project Period (FY): 2010 – 2011
• Keywords: ホーキング・アンルー輻射 / 単一光子検出 / リドベルグ原子 / 共振空胴 / 動的カシミヤ効果

Research Abstract

Feasibility study on the observation of Hawking-Unruh(HU) radiations on earth was performed in the Rydberg-atom single-photon detection system in a cooled microwave resonant cavity. Specifically a cryostat and a cavity, together with a Rydberg-atom single-photon detection system, were constructed in which related dynamical Casimir effect can be also investigated. The HU radiations resulting from Stark acceleration of atoms with the above system were studied theoretically and experimentally.

Research Products

• [Journal Article] Photon creation in a resonant cavity with a nonstationary plasma mirror and its detection with Rydberg atoms (2011)
  • Author(s): T. Kawakubo, K. Yamamoto
  • Journal Title: Physical Review A Volume: 83 Pages: 013819-1-013819-7
  • Peer Reviewed
• [Presentation] 動的カシミア効果の検証実験に向けて (2012)
  • Author(s): 城戸義明、西村智朗、ウエイド・ネイラー、松木征史
  • Organizer: イオンビーム解析研究会
  • Place of Presentation: 東京大学東京都
  • Year and Date: 20121109-10
• [Presentation] A bunched atomic beam scheme with laser compression to improve the detection sensitivity in a Rydberg-atom dark matter axion detector (2011)
  • Author(s): M. Saeed, S. Matsuki, et al.
  • Organizer: GCOE Symposiumフロンティア開拓
  • Place of Presentation: Kyoto University, Kyoto
  • Year and Date: 20110221-23
• [Presentation] Dynamical Casimir effect and its detection with Rydberg atoms in cavity QED (2011)
  • Author(s): K. Yamamoto
  • Organizer: International Workshop on Dynamical Casimir Effect
  • Place of Presentation: Padova, Italy
  • Year and Date: 2011-06-08
• [Presentation] A bunched atomic beam scheme with laser compression to improve the detection sensitivity in a Rydberg-atom dark matter axion detector (2011)
  • Author(s): M. Saeed, S. Matsuki, et al.
  • Organizer: Symposium on Low Temperature Physics and Materials Sciences
  • Place of Presentation: Kyoto University, Kyoto
  • Year and Date: 2011-03-14
• [Presentation] 動的カシミア効果検証実験:実験計画・装置 (2010)
  • Author(s): 榊原尚、西村智朗、城戸義明、松木征史、ウエイド・ネイラー、山本克治
  • Organizer: 日本物理学会秋季講演
  • Place of Presentation: 大阪府立大学大阪府
  • Year and Date: 2010-09-23
• [Presentation] Improving Detection Sensitivity of Dark-Matter Axion Search with a Rydberg-Atom Single-Photon Detector (2010)
  • Author(s): M. Saeed, Y. Kido, S. Matsuki, T. Nishimura, K. Yamamoto, et al.
  • Organizer: Symposium on fundamental physics using atoms
  • Place of Presentation: Osaka University, Osaka
  • Year and Date: 2010-08-09