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DOE OSTI · 2429200

Building Qudit-Based Quantum Computing Processors using Superconducting RF Cavities

Roy, Tanay
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Abstract

Superconducting radio frequency (SRF) cavities provide an excellent platform for storing quantum information as quantum d-level systems (qudits) due to their exceptionally long lifetimes and large accessible Hilbert spaces. A common strategy to manipulate the states is to use a nonlinear element like a transmon. There are, however, several challenges to building a 3D SRF architecture while maintaining a long cavity lifetime. We demonstrate our successful integration of transmons with single-cell Nb SRF cavities and the ability to prepare several non-classical states. Finally, we discuss our strategies to improve the coherence times, gate schemes, and extend the system for building a multi-qudit quantum processor.

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Roy, Tanay. 2024-08-09. Building Qudit-Based Quantum Computing Processors using Superconducting RF Cavities. https://doi.org/10.2172/2429200

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