Speaker: Marina Radulaski, Department of Electrical and Computer Engineering University of California - Davis
Abstract: Photonic systems are the leading candidates for deterministic quantum sources, quantum repeaters, and other key devices
for quantum information processing. Scalability of this technology depends on the stability, homogeneity and coherence
properties of quantum emitters. Here, color centers in wide band gap materials offer favorable properties for applications in
quantum memories, single-photon sources, quantum sensors, and spin-photon interfaces [1,2]. Silicon carbide, in particular,
has been an attractive commercial host of color centers featuring fiber-compatible single photon emission, long spincoherence
times and nonlinear optical properties [3]. Integration of color centers with nanophotonic devices has been a
challenging task, but significant progress has been made with demonstrations up to 120-fold resonant emission enhancement
of emitters embedded in photonic crystal cavities [4]. A novel direction in overcoming the integration challenge has been the
development of triangular photonic devices, recently shown to preserve millisecond-scale spin-coherence in silicon carbide
defects [5,6]. Triangular photonics has promising applications in quantum networks, integrated quantum circuits, and
quantum simulation. Here, open quantum system modeling provides insights into polaritonic physics achievable with realistic
device parameters through evaluation of cavity-protection, localization and phase transition effects [7]. Mapping of this
dynamic to gate-based quantum circuits opens doors for quantum advantage in understanding cavity quantum
electrodynamical (QED) effects using commercial Noisy Intermediate-Scale Quantum (NISQ) hardware [8].