Bidirectional state transfer between superconducting and microwave-photon qubits by single reflection
May 24, 2024
Abstract
The number of superconducting qubits contained in a single quantum processor is increasing steadily. However, to realize a truly useful quantum computer, it is inevitable to increase the number of qubits much further by distributing quantum information among distant processors using flying qubits. A key element towards this goal is a deterministic quantum interaction between superconducting-atom and propagating microwave-photon qubits. Here, we confirm the bidirectional state transfer between them, which completes by simply reflecting the photon at the atom. The averaged fidelity of the photon-to-atom (atom-to-photon) state transfer reaches 0.826 (0.801), limited mainly by the lifetime of the atom qubit. The present technology would be useful for future distributed quantum computation with superconducting qubits.
Journal Article
JOURNAL： Physical Review Applied
TITLE： Bidirectional state transfer between superconducting and microwave-photon qubits by single reflection
DOI： https://doi.org/10.1103/PhysRevApplied.21.054049
TITLE： Bidirectional state transfer between superconducting and microwave-photon qubits by single reflection
DOI： https://doi.org/10.1103/PhysRevApplied.21.054049
Correspondence to
Kazuki Koshino, Associate Professor
Department of Physics,
College of Liberal Arts and Sciences,
Tokyo Medical and Dental University(TMDU)
E-mail:kazuki.koshino（at）osamember.org
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