Phys.org December 16, 2021
An international team of researchers (USA – Stanford University, Germany) used second-order photon correlations to study the underlying quantum processes of soliton microcombs in an integrated silicon carbide microresonator. They showed that a stable temporal lattice of solitons can isolate a multimode below-threshold Gaussian state from any admixture of coherent light and predict that all-to-all entanglement can be realized for the state. Their work opens a pathway toward a soliton-based multimode quantum resource. Microcombs have the potential to enhance countless technologies, including GPS systems, telecommunications, autonomous vehicles, greenhouse gas tracking, spacecraft autonomy and ultra-precise timekeeping…read more. TECHNICAL ARTICLEÂ
Linearized model for quantum optical fields in a DKS state. Credit: Nature Photonics (2021)Â