Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Reexamination of decoherence in quantum walks on the hypercube   The effect of decoherence on the continuous-time quantum walk on the
hypercube is revisited. Previously, an exact solution was found for a
decoherence model that preserved the effective tensor-product form of the
dynamics. Here a new model is presented, inspired by perfect quantum state
transfer in qubit networks. A perturbative solution is found for the dynamics
of this model which is not of a tensor-product form. In contrast to previous
results, the hitting probability has a lower bound that is independent of the
hypercube dimension.

25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex