Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two quantum walkers sharing coins   We consider two independent quantum walks on separate lines augmented by
partial or full swapping of coins after each step. For classical random walks,
swapping or not swapping coins makes little difference to the random walk
characteristics, but we show that quantum walks with partial swapping of coins
have complicated yet elegant inter-walker correlations. Specifically we study
the joint position distribution of the reduced two-walker state after tracing
out the coins and analyze total, classical and quantum correlations in terms of
the mutual information, the quantum mutual information, and the
measurement-induced disturbance. Our analysis shows intriguing quantum features
without classical analogues.

17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th