Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strategies for optimal design for electrostatic energy storage in
  quantum multiwell heterostructures   The physical principles are studied for the optimal design of a quantum
multiwell heterostructure working as an electrostatic energy storage device. We
performed the search for an optimal multiwell trapping potential for electrons
that results in the maximum static palarizability of the system. The response
of the heterostructure is modeled quantum mechanically using nonlocal linear
response theory. Three main design strategies are identified, which lead to the
maximization of the stored energy. We found that the efficiency of each
strategy crucially depends on the temperature and the broadening of electron
levels. The energy density for optimized heterostructures can exceed the
nonoptimized value by a factor more than $400$. These findings provide a basis
for the development of new nanoscale capacitors with high energy density
storage capabilities.

29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat