Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stability of a BEC with Higher-order Interactions near a Feshbach
  Resonance   We consider the stability of an ultracold trapped Bose-Einstein condensate
near a Feshbach resonance. Using a modified Gross-Pitaevskii equation that
includes higher-order terms and a multi-channel model of Feshbach resonances,
we find regions where stability can be enhanced or suppressed around
experimentally measured resonances. We suggest a number of ways to probe the
stability diagram. Using scattering length zero-crossings huge deviations are
founds for the critical particle number. Effects are enhanced for narrow
resonances or tighter traps. Macroscopic tunneling of the condensate is another
possible probe for higher-order interactions, however, to see this requires
very narrow resonances or very small particle numbers.

22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th