Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum phase transitions in an interacting atom-molecule boson model   We study the quantum phase transitions of a model that describes the
interconversion of interacting bosonic atoms and molecules. Using a classical
analysis, we identify a threshold coupling line separating a molecular phase
and a mixed phase. Through studies of the energy gap, von Neumann entanglement
entropy, and fidelity, we give evidence that this line is associated to a
boundary line in the ground-state phase diagram of the quantum system.

7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an