Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Geometric nature in adiabatic evolution of dark eigenstates   In a recent Letter [Phys. Rev. Lett. {\bf 95}, 080502 (2005)], an interesting
scheme was proposed to implement a type of conditional quantum phase gates with
built-in fault-tolerant feature via adiabatic evolution of dark eigenstates. In
this comment we elaborate the geometric nature of the gate scheme and clarify
that it still belongs to a class of conventional geometric quantum computation.

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The categories of this paper are: q-bio
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The categories of this paper are: comp-gas
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The categories of this paper are: astro-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: cond-mat
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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: gr-qc
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The categories of this paper are: mtrl-th
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The categories of this paper are: nucl-th
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-th
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The categories of this paper are: physics
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The categories of this paper are: alg-geom
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The categories of this paper are: adap-org
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The categories of this paper are: q-alg