Matches in SemOpenAlex for { <https://semopenalex.org/work/W4387409801> ?p ?o ?g. }
- W4387409801 abstract "The design of quantum hardware that reduces and mitigates errors is essential for practical quantum error correction (QEC) and useful quantum computation. To this end, we introduce the circuit-Quantum Electrodynamics (QED) dual-rail qubit in which our physical qubit is encoded in the single-photon subspace, <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline overflow=scroll> <mml:mrow> <mml:mo stretchy=false>{</mml:mo> <mml:mo>|</mml:mo> <mml:mn>01</mml:mn> <mml:mo>〉</mml:mo> <mml:mo>,</mml:mo> <mml:mo>|</mml:mo> <mml:mn>10</mml:mn> <mml:mo>〉</mml:mo> <mml:mo stretchy=false>}</mml:mo> </mml:mrow> </mml:math> , of two superconducting microwave cavities. The dominant photon loss errors can be detected and converted into erasure errors, which are in general much easier to correct. In contrast to linear optics, a circuit-QED implementation of the dual-rail code offers unique capabilities. Using just one additional transmon ancilla per dual-rail qubit, we describe how to perform a gate-based set of universal operations that includes state preparation, logical readout, and parametrizable single and two-qubit gates. Moreover, first-order hardware errors in the cavities and the transmon can be detected and converted to erasure errors in all operations, leaving background Pauli errors that are orders of magnitude smaller. Hence, the dual-rail cavity qubit exhibits a favorable hierarchy of error rates and is expected to perform well below the relevant QEC thresholds with today’s coherence times." @default.
- W4387409801 created "2023-10-07" @default.
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- W4387409801 date "2023-10-06" @default.
- W4387409801 modified "2023-10-17" @default.
- W4387409801 title "Dual-rail encoding with superconducting cavities" @default.
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