Back to Search
Start Over
Quantum phases of two-component bosons on the Harper-Hofstadter ladder
- Source :
- Phys. Rev. A 102, 043322 (2020)
- Publication Year :
- 2019
-
Abstract
- We study two-component bosons on the Harper-Hofstadter model with two legs. The synthetic magnetic fields for the two types of bosons point to either the same direction or opposite directions. The bosons have hardcore intra-species interaction such that there can be no more than one boson of the same type on each lattice site. For certain filling factors in the absence of inter-species interaction, each component realizes a vortex Mott insulator with rung current or a Meissner superfluid without rung current. The system undergoes phase transitions to other phases as inter-species interaction is turned on, which are characterized numerically using the density matrix renormalization group method and supplemented with analytical studies when possible. The vortex Mott insulator transits to a gapped Meissner phase without rung current and the Meissner superfluid transits to a gapped vortex phase with rung current. In both cases, we observe gapped spin density wave states that break certain ${\mathbb Z}_{2}$ symmetries.<br />Comment: 11 pages, 10 figures
- Subjects :
- Condensed Matter - Quantum Gases
Condensed Matter - Strongly Correlated Electrons
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. A 102, 043322 (2020)
- Publication Type :
- Report
- Accession number :
- edsarx.1912.03105
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevA.102.043322