Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Three-body bound states of two bosonic impurities immersed in a Fermi
  sea in 2D   We consider two identical impurities immersed in a Fermi sea for a broad
range of masses and for both interacting and non-interacting impurities. The
interaction between the particles is described through attractive zero-range
potentials and the problem is solved in momentum space. The two impurities can
attach to a fermion from the sea and form three-body bound states. The energy
of these states increase as function of the Fermi momentum $k_F$, leading to
three-body bound states below the Fermi energy. The fate of the states depends
highly on two- and three-body thresholds and we find evidence of medium-induced
Borromean-like states in 2D. The corrections due to particle-hole fluctuations
in the Fermi sea are considered in the three-body calculations and we show that
in spite of the fact that they strongly affect both the two- and three-body
systems, the correction to the point at which the three-body states cease to
exist is small.

32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph