Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamics of zero-point energy and two-slit phenomena for photons   An earlier forward and backward in time formalism developed by us to discuss
non-relativistic electron diffraction is generalized to the relativistic case
and here applied to photons. We show how naturally the zero-point energy
emerges in the Planck black-body spectrum once symmetric in time motion -
inherent in the Maxwell equations - is invoked for photons. Then, a detailed
study is made of two-slit experiments for photons and some novel phenomena,
amenable to experiments, are proposed, that arise due to the spin of the
photon.

22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con