Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: NOON state of Bose atoms in the double-well potential via an excited
  state quantum phase transition   We suggest a simple scheme for creating a NOON state of repulsively
interacting Bose atoms in the double-well potential. The protocol consists of
two steps. First, by setting atom-atom interactions to zero, the system is
driven to the upper excited state. Second, the interactions is slowly increased
and, simultaneously, the inter-well tunneling is decreased to zero. We analyze
fidelity of the final state to the NOON state depending on the number of atoms,
ramp rate, and fluctuations of the system parameters. It is shown that for a
given fidelity the ramp rate scales algebraically with the number of atoms.

22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph