Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of cavity photons on the generation of multi-particle
  entanglement   A study on the cause of the multi-particle entanglement is presented in this
work. We investigate how dot-like single quantum well excitons, which are
independently coupled through a single microcavity mode, evolve into maximally
entangled state as a series of conditional measurements are taken on the cavity
field state. We first show how cavity photon affects the entanglement purity of
the double-exciton Bell state and the triple-exciton W state. Generalization to
multi-excitons W states is then derived analytically. Our results pave the way
for studying the crucial cause of multi-particle collective effect.

24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an