Disorder perturbed flat bands: Level density and inverse participation ratio
نویسندگان
چکیده
منابع مشابه
Quantification of Optical Disorder due to Nanoscale Density Fluctuations in Biological Tissue: Inverse Participation Ratio (IPR) Analysis of Transmission Electron Microscopy Images for Early- Stage Cancer Detection
Fluctuations in Biological Tissue: Inverse Participation Ratio (IPR) Analysis of Transmission Electron Microscopy Images for EarlyStage Cancer Detection Prabhakar Pradhan, Dhwanil Damania, Vladimir Turzhitsky, Hemant K. Roy, Allen Taflove, Vadim Backman Biomedical Engineering Department, Northwestern University, Evanston, IL 60208 Evanston Northwestern Hospital, Evanston, IL 60201 Electrical En...
متن کاملCohort-Level Sex Ratio Effects on Women’s Labor Force Participation
Cohort-Level Sex Ratio Effects on Women’s Labor Force Participation It follows from a number of theoretical models of marriage that the scarcer women are relative to men, i.e. the higher the sex ratio, the less married women are likely to participate in the labor force. Such sex ratio effects may be stronger among less educated women. These predictions are tested using individual data from Curr...
متن کاملTopological flat bands from dipolar spin systems.
We propose and analyze a physical system that naturally admits two-dimensional topological nearly flat bands. Our approach utilizes an array of three-level dipoles (effective S=1 spins) driven by inhomogeneous electromagnetic fields. The dipolar interactions produce arbitrary uniform background gauge fields for an effective collection of conserved hard-core bosons, namely, the dressed spin flip...
متن کاملSuperfluidity in topologically nontrivial flat bands.
Topological invariants built from the periodic Bloch functions characterize new phases of matter, such as topological insulators and topological superconductors. The most important topological invariant is the Chern number that explains the quantized conductance of the quantum Hall effect. Here we provide a general result for the superfluid weight Ds of a multiband superconductor that is applic...
متن کاملFlat bands and Wigner crystallization in the honeycomb optical lattice.
We study the ground states of cold atoms in the tight-binding bands built from p orbitals on a two dimensional honeycomb optical lattice. The band structure includes two completely flat bands. Exact many-body ground states with on-site repulsion can be found at low particle densities, for both fermions and bosons. We find crystalline order at n=1/6 with a sqrt[3] x sqrt[3] structure breaking a ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2018
ISSN: 2469-9950,2469-9969
DOI: 10.1103/physrevb.98.054206