Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Demonstration of a High-Fidelity CNOT for Fixed-Frequency Transmons with
  Engineered ZZ Suppression   Improving two-qubit gate performance and suppressing crosstalk are major, but
often competing, challenges to achieving scalable quantum computation. In
particular, increasing the coupling to realize faster gates has been
intrinsically linked to enhanced crosstalk due to unwanted two-qubit terms in
the Hamiltonian. Here, we demonstrate a novel coupling architecture for
transmon qubits that circumvents the standard relationship between desired and
undesired interaction rates. Using two fixed frequency coupling elements to
tune the dressed level spacings, we demonstrate an intrinsic suppression of the
static $ZZ$, while maintaining large effective coupling rates. Our architecture
reveals no observable degradation of qubit coherence ($T_1,T_2 > 100~\mu s$)
and, over a factor of 6 improvement in the ratio of desired to undesired
coupling. Using the cross-resonance interaction we demonstrate a 180~ns
single-pulse CNOT gate, and measure a CNOT fidelity of 99.77(2)$\%$ from
interleaved randomized benchmarking.

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The categories of this paper are: mtrl-th
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The categories of this paper are: chem-ph
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The categories of this paper are: q-alg
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-bio
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The categories of this paper are: stat
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-th
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The categories of this paper are: math-ph
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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: dg-ga
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The categories of this paper are: solv-int
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The categories of this paper are: gr-qc
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The categories of this paper are: math