Hyperbolic phonon-polaritons for quantum computing applications

Strongly-coupled light-matter interactions have proven to be a promising avenue in addressing the challenges of the current Noisy Intermediate-Scale Quantum era. In particular, polaritons have demonstrated the ability to perform logic gate operations in quantum computers. However, current qubit architectures suffer from the inability to fabricate long-range qubit entanglement. This limitation increases circuit depth, computational complexity, and can lead to operations that exceed coherence times. As architectures scale up, there is also a need to identify an efficient technique for quantum transduction among architectures operating at different frequencies. In this presentation, I will talk about my work with Los Alamos National Lab where I investigate the ability of hyperbolic phonon-polaritons in MnO3 as a medium through which qubits can realize wall-to-wall entanglement.