2D Hard-Core Moiré-Bose–Hubbard Model via Gutzwiller Mean-Field
POSTER
Abstract
We study interacting hard-core bosons on a two-dimensional square lattice subjected to a moiré-induced quasiperiodic onsite potential.
We employ a single-site Gutzwiller product state with a density constraint and perform self-consistent energy minimization on 𝐿 × 𝐿 lattices.
Phase identification combines the local condensate 𝜙𝑗,𝑘, compressibility 𝜅, superfluid stiffness via twist-boundary response, and the static
structure factor 𝑆(𝐪). We illustrate these trends using representative phase maps and order-parameter textures.
We employ a single-site Gutzwiller product state with a density constraint and perform self-consistent energy minimization on 𝐿 × 𝐿 lattices.
Phase identification combines the local condensate 𝜙𝑗,𝑘, compressibility 𝜅, superfluid stiffness via twist-boundary response, and the static
structure factor 𝑆(𝐪). We illustrate these trends using representative phase maps and order-parameter textures.
*Supported in part by the Turkish Academy of Sciences (TUBA).
Presenters
-
B. Tanatar
- Bilkent University