Empowering high-dimensional quantum computing by traversing the dual bosonic ladder

Abstract

High-dimensional quantum information processing has emerged as a promising avenue to transcend hardware limitations and advance the frontiers of quantum technologies. Harnessing the untapped potential of the so-called qudits necessitates the development of quantum protocols beyond the established qubit methodologies. Here, we present a robust, hardware-efficient, and extensible approach for operating multidimensional solid-state systems using Raman-assisted two-photon interactions. To demonstrate its efficacy, we construct a set of multi-qubit operations, realize highly entangled multidimensional states including atomic squeezed states and Schrödinger cat states, and implement programmable entanglement distribution along a qudit array. Our work illuminates the quantum electrodynamics of strongly driven multi-qudit systems and provides the experimental foundation for the future development of high-dimensional quantum applications.

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• High-Coherence Kerr-cat qubit in 2D architecture
• Qutrit and Qubit Circuits for Three-Flavor Collective Neutrino Oscillations
• Synthetic multi-dimensional Aharonov-Bohm cages in Fock state lattices
• Multi-frequency control and measurement of a spin-7/2 system encoded in a transmon qudit
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• Synthetic high angular momentum spin dynamics in a microwave oscillator
• Lattice Hamiltonians and Stray Interactions Within Quantum Processors
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