Vortices in fermion droplets with repulsive dipole-dipole interactions
Gunnar Eriksson
Friday, 7 September 2012, 11:00
Matfys library
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.