Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Can the Abraham Light Momentum and Energy in a Medium Constitute a
  Lorentz Four-Vector?   By analyzing the Einstein-box thought experiment with the principle of
relativity, it is shown that Abraham's light momentum and energy in a medium
cannot constitute a Lorentz four-vector, and they consequentially break global
momentum and energy conservation laws. In contrast, Minkowski's momentum and
energy always constitute a Lorentz four-vector no matter whether in a medium or
in vacuum, and the Minkowski's momentum is the unique correct light momentum. A
momentum-associated photon mass in a medium is exposed, which explains why only
the Abraham's momentum is derived in the traditional "center-of-mass-energy"
approach. The EM boundary-condition matching approach, combined with Einstein
light-quantum hypothesis, is proposed to analyze this thought experiment, and
it is found for the first time that only from Maxwell equations without resort
to the relativity, the correctness of light momentum definitions cannot be
identified. Optical pulling effect is studied as well.

6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org