Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: From nothing to something II: nonlinear systems via consistent
  correlated bang   Chinese ancient sage Laozi said everything comes from \emph{\bf \em
"nothing"}. \rm In the first letter (Chin. Phys. Lett. 30 (2013) 080202),
infinitely many discrete integrable systems have been obtained from "nothing"
via simple principles (Dao). In this second letter, a new idea, the consistent
correlated bang, is introduced to obtain nonlinear dynamic systems including
some integrable ones such as the continuous nonlinear Schr\"odinger equation
(NLS), the (potential) Korteweg de Vries (KdV) equation, the (potential)
Kadomtsev-Petviashvili (KP) equation and the sine-Gordon (sG) equation. These
nonlinear systems are derived from nothing via suitable "Dao", the shifted
parity, the charge conjugate, the delayed time reversal, the shifted exchange,
the shifted-parity-rotation and so on.

12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
13
The categories of this paper are: quant-ph