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

  1. Long B. Nguyen,
  2. Noah Goss,
  3. Karthik Siva,
  4. Yosep Kim,
  5. Ed Younis,
  6. Bingcheng Qing,
  7. Akel Hashim,
  8. David I. Santiago,
  9. and Irfan Siddiqi
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.