Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Binary mixture of pseudospin-1/2 Bose gases with interspecies spin
  exchange: from classical fixed points and ground states to quantum ground
  states   We consider the effective spin Hamiltonian describing a mixture of two
species of pseudo-spin-1/2 Bose gases with interspecies spin exchange. First we
analyze the stability of the fixed points of the corresponding classical
dynamics, of which the signature is found in quantum dynamics with a
disentangled initial state. Focusing on the case without an external potential,
we find all the ground states by taking into account quantum fluctuations
around the classical ground state in each parameter regime. The nature of
entanglement and its relation with classical bifurcation is investigated. When
the total spins of the two species are unequal, the maximal entanglement at the
parameter point of classical bifurcation is possessed by the excited state
corresponding to the classical fixed point which bifurcates, rather than by the
ground state.

16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph