Ground-state cooling of ions via sympathetic cooling with ultracold atomic gases

2015 Fiscal Year Final Research Report

• Project/Area Number: 25800227
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Atomic/Molecular/Quantum electronics
• Research Institution: The University of Electro-Communications
• Principal Investigator: Haze Shinsuke 電気通信大学, 学内共同利用施設等, 学振特別研究員 (10647423)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 冷却原子 / 冷却イオン

Outline of Final Research Achievements

In this research, we implemented an experimental system for realizing an ultracold mixture of atoms and ions. We succeeded in determining the cross sections by measuring atom-ion collisions in a wide collision energy scale ranging from milli kelvin to a few kelvin. We also precisely investigated the elastic collision rate and the inelastic loss rate, and it is confirmed that our atom-ion mixture is useful for realizing atom-ion sympathetic cooling and atom-ion interaction in a quantum regime. These results can be an essential step for atom-ion sympathetic cooling and also for exploring the dynamics of chemical reactions in ultracold temperature, which governs the chemistry in an interstellar space.

Free Research Field

量子エレクトロニクス