Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The vacuum tunnelling and the crossover of deconfinement in
  Friedberg-Lee model   We have discussed the vacuum tunnelling in Friedberg-Lee model. The
tunnelling coefficient is derived in the field configuration space by
calculating the transition amplitude using the path integral under the
stationary phase approximation and the dilute instanton gas approximation. By
studying the tunnelling effect between the two degenerating vacuums at the
critical temperature and chemical potential, we find that the system could be
deconfined by tunnelling, which could possibly change the first order
deconfinement phase transition to crossover.

34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con