Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Superluminal telecommunication: an observable contradiction between
  quantum entanglement and relativistic causality   I present a schema for a superluminal telecommunication system based on
polarization entangled photon pairs. Binary signals can be transmitted at
superluminal speed in this system, if entangled photon pairs can really be
produced. The existence of the polarization entangled photon pairs is in direct
contradiction to the relativistic causality in this telecommunication system.
This contradiction implies the impossibility of generating entangled photon
pairs.

30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con