Ferrofluidity in a two-component dipolar Bose-Einstein Condensate
Hiroki Saito, Yuki Kawaguchi, Masahito Ueda
TL;DR
This paper demonstrates that a two-component dipolar Bose-Einstein condensate exhibits pattern formations like hexagonal structures, hysteresis, and solitons, indicating supersolid behavior and complex interface phenomena.
Contribution
It reveals novel pattern formations and interface phenomena in dipolar BECs, connecting superfluidity with supersolidity and magnetic liquid analogies.
Findings
Hexagonal pattern formation observed
Hysteretic behavior demonstrated
Evidence of supersolidity in BEC
Abstract
It is shown that the interface in a two-component Bose-Einstein condensate (BEC) in which one component exhibits a dipole-dipole interaction spontaneously forms patterns similar to those formed in a magnetic liquid subject to a magnetic field. A hexagonal pattern, hysteretic behavior, and soliton-like structure are numerically demonstrated. A phenomenon similar to the labyrinthine instability is also found. These phenomena may be realized using a 52Cr BEC. The periodic density modulation in the superfluid ground state offers evidence of supersolidity.
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