Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Helical multiferroics for electric field controlled quantum information
  processing   Magnetoelectric coupling in helical multiferroics allows to steer spin order
with electric fields. Here we show theoretically that in a helical multiferroic
chain quantum information processing as well as quantum phases are highly
sensitive to electric (E) field. Applying E-field, the quantum state transfer
fidelity can be increased and made directionally dependent.
  We also show that E field transforms the spin-density-wave/nematic or
multipolar phases of frustrated ferromagnetic spin-1/2 chain in chiral phase
with a strong magnetoelectric coupling. We find sharp reorganization of the
entanglement spectrum as well as a large enhancement of fidelity susceptibility
at Ising quantum phase transition from nematic to chiral states driven by
electric field. These findings point to a new tool for quantum information with
low power consumption.

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The categories of this paper are: q-bio
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The categories of this paper are: atom-ph
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The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
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The categories of this paper are: econ
16
The categories of this paper are: stat
1
The categories of this paper are: cs
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The categories of this paper are: dg-ga
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-th
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The categories of this paper are: hep-lat
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The categories of this paper are: q-alg
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The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph