Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Entanglement robustness via spatial deformation of identical particle
  wave functions   We address the problem of entanglement protection against surrounding noise
by a procedure suitably exploiting spatial indistinguishability of identical
subsystems. To this purpose, we take two initially separated and entangled
identical qubits interacting with two independent noisy environments. Three
typical models of environments are considered: amplitude damping channel, phase
damping channel and depolarizing channel. After the interaction, we deform the
wave functions of the two qubits to make them spatially overlap before
performing spatially localized operations and classical communication (sLOCC)
and eventually computing the entanglement of the resulting state. This way, we
show that spatial indistinguishability of identical qubits can be utilized
within the sLOCC operational framework to partially recover the quantum
correlations spoiled by the environment. A general behavior emerges: the higher
the spatial indistinguishability achieved via deformation, the larger the
amount of recovered entanglement.

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The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
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The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg