Rotational tuning of the dipole-dipole interaction in a Bose gas of magnetic atoms

Abstract

We investigate the dynamics of a Bose-Einstein condensate of magnetic atoms in which the dipoles are rotated by an external magnetic field. The time-averaged dipole-dipole interaction between the atoms is effectively tuned by this rotation, however recent experimental and theoretical developments show that dynamic instabilities emerge that may cause heating. We present simulations of a realistic tuning sequence in this system, and characterize the system behavior and the emergence of instabilities. Our results indicate that the instabilities develop more slowly as the rotation frequency increases, and indicate that experiments with tuned dipole-dipole interactions should be feasible.

7 pages, 5 figures

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• Many-Body Physics with Ultracold Gases
• Bose-Einstein condensation of chromium
• Bose-Einstein Condensation of Erbium
• Self-bound droplets of a dilute magnetic quantum liquid
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Cited by in corpus (17)

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• Quantum droplets of quasi-one-dimensional dipolar Bose-Einstein condensates
• Vortices in dipolar Bose-Einstein condensates
• Control of ${}^{164}$Dy Bose-Einstein condensate phases and dynamics with dipolar anisotropy
• Double Microwave Shielding
• Two-dimensional miscible-immiscible supersolid and droplet crystal state in a homonuclear dipolar bosonic mixture
• Supersolid Stacks in Antidipolar Bose-Einstein Condensates
• Arbitrary-angle rotation of the polarization of a dipolar Bose-Einstein condensate
• Spin rotons and supersolids in binary antidipolar condensates
• Generation of density waves in dipolar quantum gases by time-periodic modulation of atomic interactions
• Induced supersolidity in a Dy-Er mixture
• Novel soliton in dipolar BEC caused by the quantum fluctuations
• Roadmap to vortex nucleation below critical rotation frequency in a dipolar Bose-Einstein condensate
• Symmetry and Self-Bound Droplets in Dipolar Molecular Gases
• Strongly dipolar molecular Bose-Einstein condensates: From few- to many-body physics
• Quantum dynamics of spin-J particles in static and rotating magnetic fields: Entanglement resonances and kinks