Novel development of ultimate quantum manipulation techniques in an optical lattice

Research Project

Project/Area Number	24540426
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Multi-year Fund
Section	一般
Research Field	Atomic/Molecular/Quantum electronics
Research Institution	Kyoto University
Principal Investigator	YOSHIKAWA Yutaka 京都大学, 理学(系)研究科(研究院), 助教 (00345076)
Project Period (FY)	2012-04-01 – 2015-03-31
Project Status	Completed (Fiscal Year 2014)
Budget Amount *help	¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000) Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000) Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000) Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords	レーザー冷却 / 量子光学 / レーザー分光 / 原子物理学 / 冷却原子気体 / ボース・アインシュタイン凝縮 / 量子エレクトロニクス / 光格子
Outline of Final Research Achievements	In this research, Bose-Einstein condensed ytterbium atoms were loaded into a three-dimensional optical lattice and manipulated site-by-site using an optical magnetic resonance imaging. From spectra of ultra-narrow optical transitions, we directly observed the discretization of excitation energy of the atomic ensemble accompanied with the superfluid-to-Mott insulator transition. We also designed a quantum-gas microscope system, which can directly observe single atoms in each lattice sites, and establised its basic technique.