Vortices in fermion droplets with repulsive dipole-dipole interactions

Abstract

Vortices are found in a fermion system with repulsive dipole-dipole interactions, trapped by a rotating quasi-two-dimensional harmonic oscillator potential. Such systems have much in common with electrons in quantum dots, where rotation is induced via an external magnetic field. In contrast to the Coulomb interactions between electrons, the (externally tunable) anisotropy of the dipole-dipole interaction breaks the rotational symmetry of the Hamiltonian. This may cause the otherwise rotationally symmetric exact wavefunction to reveal its internal structure more directly.

5 pages, 5 figures

References in corpus (8)

• Many-Body Physics with Ultracold Gases
• Theory of ultracold Fermi gases
• Stabilizing a purely dipolar quantum gas against collapse
• Quantum Hall physics in rotating Bose-Einstein condensates
• Mean-field regime of trapped dipolar Bose-Einstein condensates in one and two dimensions
• Strongly Correlated States of Ultracold Rotating Dipolar Fermi Gases
• Tunable Wigner States with Dipolar Atoms and Molecules
• Ground-state of two-dimensional finite electron systems in the Quantum Hall regime