Dipolar quantum optimal control via time-dependent magnetic-field orientation prepares entangled current states in ring lattices, with fidelities matching symmetry-imposed upper bounds.
Vortices in dipolar Bose-Einstein condensates
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abstract
Quantized vortices are the hallmark of superfluidity, and are often sought out as the first observable feature in new superfluid systems. Following the recent experimental observation of vortices in Bose-Einstein condensates comprised of atoms with inherent long-range dipole-dipole interactions [Nat. Phys. 18, 1453-1458 (2022)], we thoroughly investigate vortex properties in the three-dimensional dominantly dipolar regime, where beyond-mean-field effects are crucial for stability, and investigate the interplay between trap geometry and magnetic field tilt angle.
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Dipolar optimal control of entangled current states
Dipolar quantum optimal control via time-dependent magnetic-field orientation prepares entangled current states in ring lattices, with fidelities matching symmetry-imposed upper bounds.