Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: What is a quantum really like?   The hypothesis of quantum self-interference is not directly observable, but
has at least three necessary implications. First, a quantum entity must have no
less than two open paths. Second, the size of the interval between any two
consecutive quanta must be irrelevant. Third, which-path information must not
be available to any observer. All of these predictions have been tested and
found to be false. A similar demonstration is provided for the hypothesis of
quantum erasure. In contrast, if quanta are treated as real particles, acting
as sources of real waves, then all types of interference can be explained with
a single causal mechanism, without logical or experimental inconsistencies.

21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat
29
The categories of this paper are: funct-an