Excitation spectrum of a two-component Bose-Einstein condensate in a ring potential

Abstract

A mixture of two distinguishable Bose-Einstein condensates confined in a ring potential has numerous interesting properties under rotational and solitary-wave excitation. The lowest-energy states for a fixed angular momentum coincide with a family of solitary-wave solutions. In the limit of weak interactions, exact diagonalization of the many-body Hamiltonian is possible and permits evaluation of the complete excitation spectrum of the system.

4 pages, 1 figure

References in corpus (2)

• Observation of persistent flow of a Bose-Einstein condensate in a toroidal trap
• Cold atom confinement in an all-optical dark ring trap

Cited by in corpus (4)

• Mean-field yrast spectrum of a two-component Bose gas in ring geometry: persistent currents at higher angular momentum
• Excitation spectrum of a mixture of two Bose gases confined in a ring potential with interaction asymmetry
• Mean-field yrast spectrum and persistent currents in a two-component Bose gas with interaction asymmetry
• Solitary-wave solutions in binary mixtures of Bose-Einstein condensates under periodic boundary conditions