Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quasiparticle Mass Enhancement and Fermi Surface Shape Modification in
  Oxide Two-Dimensional Electron Gases   We propose a model intended to qualitatively capture the electron-electron
interaction physics of two-dimensional electron gases formed near
transition-metal oxide heterojunctions containing $t_{2g}$ electrons with a
density much smaller than one electron per metal atom. Two-dimensional electron
systems of this type can be described perturbatively using a $GW$ approximation
which predicts that Coulomb interactions enhance quasiparticle effective masses
more strongly than in simple two-dimensional electron gases, and that they
reshape the Fermi surface, reducing its anisotropy.

34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th