• Rapid Communication

Energy shift of magnons in a ferromagnetic spinor-dipolar Bose-Einstein condensate

Hiroki Saito and Masaya Kunimi
Phys. Rev. A 91, 041603(R) – Published 16 April 2015
PDFHTMLExport Citation

Abstract

Motivated by the recent experiment performed by the Berkeley group [G. E. Marti et al., Phys. Rev. Lett. 113, 165301 (2014)], we consider the dynamics of magnons in a spin-1 spinor-dipolar Bose-Einstein condensate, using mean-field theory. We show that the effective mass of a magnon is increased by the magnetic dipole-dipole interaction, as observed in the experiment. The magnon mass is also decreased by changing the direction of the magnetic field. The increase and decrease in the magnon mass manifest themselves in the acceleration of the magnons.

  • Figure
  • Figure
  • Figure
  • Received 13 February 2015

DOI:https://doi.org/10.1103/PhysRevA.91.041603

©2015 American Physical Society

Authors & Affiliations

Hiroki Saito and Masaya Kunimi

  • Department of Engineering Science, University of Electro-Communications, Tokyo 182-8585, Japan

Article Text (Subscription Required)

Click to Expand

Supplemental Material (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 91, Iss. 4 — April 2015

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×