Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exact energy quantization condition for single Dirac particle in
  one-dimensional (scalar) potential well   We present an exact quantization condition for the time independent solutions
(energy eigenstates) of the one-dimensional Dirac equation with a scalar
potential well that gives only two `effective' turning points (defined by the
roots of $V(x)+mc^2=\pm E$) for a given energy $E$ and satisfies $\min
V(x)+mc^2\geq 0$. This result generalizes the previously known non-relativistic
quantization formula and preserves many physically desirable symmetries,
besides, attaining the correct non-relativistic limit. Numerical calculations
demonstrate the utility of the formula for computing accurate energy
eigenvalues.

18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th