ArticleNature communications2024
Observation and manipulation of quantum interference in a superconducting Kerr parametric oscillator.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Quantum benchmarking of high-fidelity noise-biased operations on a detuned Kerr-cat qubit.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Quantum squeezing amplification with a weak Kerr nonlinear oscillator.Nature communications · 2025Article
- Quantum control of an oscillator with a Kerr-cat qubit.Nature communications · 2025Article
- Entangling Schrödinger's cat states by bridging discrete- and continuous-variable encoding.Nature communications · 2025Article
- Universal control of a bosonic mode via drive-activated native cubic interactions.Nature communications · 2024Article
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Authors and funding
12 authors.
Funding
Abstract
Quantum tunneling is the phenomenon that makes superconducting circuits "quantum". Recently, there has been a renewed interest in using quantum tunneling in phase space of a Kerr parametric oscillator as a resource for quantum information processing. Here, we report a direct observation of quantum interference induced by such tunneling and its dynamics in a planar superconducting circuit through Wigner tomography. We experimentally elucidate all essential properties of this quantum interference, such as mapping from Fock states to cat states, a temporal oscillation due to the pump detuning, as well as its characteristic Rabi oscillations and Ramsey fringes. Finally, we perform gate operations as manipulations of the observed quantum interference. Our findings lay the groundwork for further studies on quantum properties of superconducting Kerr parametric oscillators and their use in quantum information technologies.
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Registered trials
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