Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quench Induced Growth of Distant Entanglement from Product and Locally
  Entangled States in Spin Chains   We study the problem of entangling two spins at the distant ends of a spin
chain by exploiting the nonequilibrium dynamics of the system after a sudden
global quench. As initial states we consider a canted/spiral order product
state of the spins, and singlets of neighboring pairs of spins. We find that
within the class of canted order initial states, no entanglement is generated
at any time except for the special case of the Neel state. While an earlier
work had shown that the Neel state is indeed an excellent starting resource for
the dynamical generation of long distance entanglement, the curious fact that
this is the sole point within a large class of initial product states of the
spins was not noted. On the other hand, we find that an initial state which is
a series of nearest neighbor Bell states, and well motivated by some physical
realizations, is also a good starting resource for end to end entanglement in a
similar way to the Neel state.

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The categories of this paper are: nlin
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The categories of this paper are: nucl-th
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The categories of this paper are: comp-gas
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The categories of this paper are: q-alg
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The categories of this paper are: adap-org
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-lat
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The categories of this paper are: patt-sol
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The categories of this paper are: gr-qc
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The categories of this paper are: mtrl-th
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The categories of this paper are: supr-con
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The categories of this paper are: math
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The categories of this paper are: q-fin
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The categories of this paper are: physics
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The categories of this paper are: hep-ph
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The categories of this paper are: plasm-ph