Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Elementary explanation of the inexistence of decoherence at zero
  temperature for systems with purely elastic scattering   This note has no new results and is therefore not intended to be submitted to
a "research" journal in the foreseeable future, but to be available to the
numerous individuals who are interested in this issue. Several of those have
approached the author for his opinion, which is summarized here in a hopefully
pedagogical manner, for convenience. It is demonstrated, using essentially only
energy conservation and elementary quantum mechanics, that true decoherence by
a normal environment approaching the zero-temperature limit is impossible for a
test particle which can not give or lose energy. Prime examples are: Bragg
scattering, the M\"ossbauer effect and related phenomena at zero temperature,
as well as quantum corrections for the transport of conduction electrons in
solids. The last example is valid within the scattering formulation for the
transport. Similar statements apply also to interference properties in
equilibrium.

29
The categories of this paper are: funct-an
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The categories of this paper are: atom-ph
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
24
The categories of this paper are: dg-ga