Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum Monte Carlo Simulation of Exciton-Exciton Scattering in a
  GaAs/AlGaAs Quantum Well   We present a computer simulation of exciton-exciton scattering in a quantum
well. Specifically, we use quantum Monte Carlo techniques to study the bound
and continuum states of two excitons in a 10 nm wide
GaAs/Al$_{0.3}$Ga$_{0.7}$As quantum well. From these bound and continuum states
we extract the momentum-dependent phase shifts for s-wave scattering. A
surprising finding of this work is that a commonly studied effective-mass mode
for excitons in a 10 nm quantum well actually supports two bound biexciton
states. The second, weakly bound state may dramatically enhance exciton-exciton
interactions. We also fit our results to a hard-disk model and indicate
directions for future work.

15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin