Edge theories for polarized quantum Hall states

Article

关键词: TEXTURED EDGES;    SKYRMIONS;    EXCITATIONS;    SYSTEMS;    FERROMAGNETS;    MODEL;    WAVES;   

DOI  :  10.1103/PhysRevB.61.7553

来源: SCIE

【 摘 要 】

Starting from recently proposed bosonic mean-field theories for fully and partially polarized quantum Hall states, we construct corresponding effective low-energy theories for the edge modes. The requirements of gauge symmetry and invariance under global O(3) spin rotations, broken only by a Zeeman coupling, imply boundary conditions that allow for edge spin waves. In the generic case, these modes are chiral, and the spin stiffness differs from that in the bulk. For the case of a fully polarized v=l state, our results agree with previous Hartree-Fock calculations.

【 授权许可】

Free