Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Revival of electron coherence in a finite-length quantum wire   We study the spatial decay of electron coherence due to electron-electron
interaction in a finite-length disorder-free quantum wire. Based on the
Luttinger liquid theory, we demonstrate that the coherence length
characterizing the exponential decay of the coherence can vary from region to
region, and that the coherence can even revive after the decay. This
counterintuitive behavior, which is in clear contrast to the conventional
exponential decay with single coherence length, is due to the fractionalization
of an electron and the finite-size-induced recombination of the fractions.

28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
2
The categories of this paper are: math
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga