2016 CAP Congress / Congrès de l'ACP 2016

Chiral spin liquid from magnetic Wannier states

15 Jun 2016, 16:15

15m

SITE A0150 (University of Ottawa)

Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition) Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM) W3-3 Quantum Transport (DCMMP) / Transport quantique (DPMCM)

Speaker

Ivan Panfilov

Description

We present a mapping of a two-dimensional system of interacting bosons in a strong perpendicular magnetic eld to an equivalent system of interacting bosons on the square lattice in the absence of the eld. The mapping utilizes a magnetic Bloch and the corresponding magnetic Wannier singleparticle basis in the lowest Landau level. By construction, the ground states of the resulting model of interacting bosons on the square lattice are gapped fractionalized liquids or gapless Bose metal states with broken time reversal symmetry at specic rational lling fractions.