Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum Information Capsule and Information Delocalization by
  Entanglement in Multiple-qubit Systems   Where do entangled multiple-qubit systems store information? For information
injected into a qubit, this question is nontrivial and interesting since the
entanglement delocalizes the information. So far, a common picture is that of a
qubit and its purification partner sharing the information quantum
mechanically. Here, we introduce a new picture of a single qubit in the
correlation space, referred to as quantum information capsule (QIC), confining
the information perfectly. This picture is applicable for the entangled
multiple-qubit system in an arbitrary state. Unlike the partner picture, in the
QIC picture, by swapping the single-body state, leaving other subsystems
untouched, the whole information can be retrieved out of the system. After the
swapping process, no information remains in the system.

18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
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The categories of this paper are: math-ph
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat