Observation of collapse and revival in a superconducting atomic frequency comb

• URL: http://arxiv.org/abs/2310.04200v1
• Date: Fri, 6 Oct 2023 12:33:28 GMT
• Title: Observation of collapse and revival in a superconducting atomic frequency comb
• Authors: E.S. Redchenko, M. Zens, M. Zemlicka, M. Peruzzo, F. Hassani, H.S. Dhar, D.O. Krimer, S. Rotter, J.M. Fink
• Abstract summary: We demonstrate an atomic frequency comb formed by individual artificial atoms strongly coupled to a single resonator mode. We show that this revival dynamics emerges as a consequence of the constructive and periodic rephasing of the five superconducting qubits forming the vacuum Rabi split comb. In the future, similar devices could be used as a memory with tunable in-situ storage time or as an on-chip periodic pulse generator with non-classical photon statistics.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Recent advancements in superconducting circuits have enabled the experimental study of collective behavior of precisely controlled intermediate-scale ensembles of qubits. In this work, we demonstrate an atomic frequency comb formed by individual artificial atoms strongly coupled to a single resonator mode. We observe periodic microwave pulses that originate from a single coherent excitation dynamically interacting with the multi-qubit ensemble. We show that this revival dynamics emerges as a consequence of the constructive and periodic rephasing of the five superconducting qubits forming the vacuum Rabi split comb. In the future, similar devices could be used as a memory with in-situ tunable storage time or as an on-chip periodic pulse generator with non-classical photon statistics.

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