Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Entangled Space-Time   We illustrate the entanglement mechanism of quantum space-time itself. We
consider a discrete, quantum version of de Sitter Universe with a Planck
time-foliation, to which is applied the quantum version of the holographic
principle (a Planckian pixel encodes one qubit rather than a bit). This results
in a quantum network, where the time steps label the nodes. The quantum
fluctuations of the vacuum are the connecting links of the quantum network,
while the total number of pixels (qubits) of a spatial slice are the outgoing
links from a node n. At each node n there is a couple of quantum gates, the
Hadamard gate (H) and the controlled-not (CNOT) gate, plus a projector P. The
Hadamard gate transforms virtual states (bits) into qubits, the projector P
measures a qubit at the antecedent node, giving rise to a new bit, and the CNOT
gate entangles a qubit at node n with the new bit at node n-1. We show that the
above quantum-computational interpretation of space-time entanglement has a
geometrical counterpart. In fact, the quantum fluctuations of the metric on
slice n are such that a tiny wormhole will connect one Planckian pixel of slice
n with one of slice n-1. By the quantum holographic principle, such a
geometrical connection is space-time entanglement.

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The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
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The categories of this paper are: q-fin
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The categories of this paper are: q-alg
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The categories of this paper are: cmp-lg
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The categories of this paper are: ao-sci
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The categories of this paper are: patt-sol
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph