Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Graphane with carbon dimer defects: Robust in-gap states and a scalable
  two-dimensional platform for quantum computation   We study the energy level structures of the defective graphane lattice, where
a carbon dimer defect is created by removing the hydrogen atoms on two
nearest-neighbor carbon sites. Robust defect states emerge inside the bulk
insulating gap of graphane. While for the stoichiometric half-filled system
there are two doubly degenerate defect levels, there are four nondegenerate and
spin-polarized in-gap defect levels in the system with one electron less than
half filling. A universal set of quantum gates can be realized in the defective
graphane lattice, by triggering resonant transitions among the defect states
via optical pulses and \emph{ac} magnetic fields. The sizable energy separation
between the occupied and the empty in-gap states enables precise control at
room temperature. The spatial locality of the in-gap states implies a qubit
network of extremely high areal density. Based on these results, we propose
that graphane as a unique platform could be used to construct the future
all-purpose quantum computers.

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The categories of this paper are: mtrl-th
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The categories of this paper are: solv-int
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
3
The categories of this paper are: physics
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The categories of this paper are: nucl-th
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The categories of this paper are: acc-phys
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The categories of this paper are: gr-qc
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The categories of this paper are: stat
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org
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The categories of this paper are: q-fin
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The categories of this paper are: chem-ph
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The categories of this paper are: econ