Nanowerk July 7, 2022
Because of the combination of long coherence times and large interaction strengths, one of the leading experimental platforms for cavity QED involves coupling a superconducting circuit to a 3D microwave cavity. In this work. An international team of researchers (USA – University of Chicago, University Rutgers, University of Chicago, UC Berkeley, South Korea) demonstrated a variety of protocols for universal single-mode quantum control applicable across all cavity modes, using only a single drive line. They achieved this by developing a straightforward flute method for creating monolithic superconducting microwave cavities that reduces loss while simultaneously allowing control of the mode spectrum and mode-qubit interaction. They highlighted the flexibility and ease of implementation of this technique by using it to fabricate a variety of 3D cavity geometries, providing a template for engineering multimode quantum systems with exceptionally low dissipation. According to the researchers their work is an important step towards realizing hardware efficient random access quantum memories and processors, and for exploring quantum many-body physics with photons…read more. TECHNICAL ARTICLEÂ
Quantum control of multimode flute cavity using a transmon… Credit: Phys. Rev. Lett. 127, 107701, 31 August 2021Â