Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Controlled transfer of quantum amplitude via modulation of a potential
  barrier: numerical study in a model of SQUID   We numerically integrate the time-dependent Schrodinger equation in a
single-degree-of-freedom model of SQUID with a variable potential barrier
between the basis flux states. We find that linear superpositions of the basis
states, with relatively little residual excitation, can be formed by pulsed
modulations of the barrier, provided the pulse duration exceeds the period of
small oscillations of the flux. Two pulses applied in sequence exhibit strong
interference effects, which we propose to use for an experimental determination
of the decoherence time in SQUIDs.

14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an