Magnetic properties of a spinor dipolar Bose-Einstein condensate

2015 Fiscal Year Final Research Report

• Project/Area Number: 22740265
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Atomic/Molecular/Quantum electronics
• Research Institution: Nagoya University (2014-2015); The University of Tokyo (2010-2013)
• Principal Investigator: Kawaguchi Yuki 名古屋大学, 工学(系)研究科(研究院), 准教授 (00456261)
• Project Period (FY): 2010-04-01 – 2016-03-31
• Keywords: 物性理論 / 量子エレクトロニクス / 冷却原子気体

Outline of Final Research Achievements

We have investigated the magnetic property of Bose-Einstein condensates with spin internal degrees of freedom (spinor BECs). We have shown that the magnetic dipole-dipole interaction in spinor BECs causes the spin Hall effect. The changes in the magnetic phase diagram, phase transition, and the excitation spectrum due to the many-body effect are evaluated by using the perturbation theory. The effect of the superfluid current on the domain growth dynamics in a ferromagnetic BEC is investigated.

Free Research Field

物性理論