Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Trojan Quantum Walks   We investigate the transport properties and entanglement between spin and
position of one-dimensional quantum walks starting from a qubit over position
states following a delta-like (local state) and Gaussian (delocalized state)
distributions. We find out that if the initial state is delocalized enough and
a NOT gate reflects this state backwards, then the interference pattern
extinguishes the position dispersion without preventing the propagation of the
state. This effect allows the creation of a Trojan wave packet, a non-spreading
and non-stationary double-peak quantum state.

20
The categories of this paper are: acc-phys
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The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
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The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
2
The categories of this paper are: math
16
The categories of this paper are: stat
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The categories of this paper are: comp-gas
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The categories of this paper are: solv-int
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The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
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The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con