Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Experimental distillation of bi-partite polarization entanglement using
  polarizing Mach-Zehnder interferometers   Entanglement distillation is the process of concentrating entanglement from a
given quantum state. We present a technique for distillation of bi-partite
polarization entanglement using interferometry. This technique can be optimized
to extract maximal entanglement from any pure or mixed entangled state. A model
for this method is presented and in particular we present experimental results
for pure states when using polarizing Mach-Zehnder interferometers. These
experimentally distilled states always demonstrate an increased violation of
Bell's inequality.

7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn