Researchers:
Shirin Afzal, Post Doc
Majid Taghavi Dehaghani, Post Doc
Mahdi Rizvandi, Ph.D. Student
Topological photonic insulators, a fascinating phase of matter in photonics, have garnered significant attention for their exceptional capability to transport light through topologically protected edge states, impervious to defects and scattering. Recently, the utilization of topological edge states has led to the development of robust quantum sources, leveraging nonlinearity within topological lattices. However, these sources typically necessitate a high-power pump that travels across numerous unit cells along the lattice edges. Our objective is to advance the generation of entangled photon pairs by harnessing a novel topological resonance found within the bulk of Floquet topological lattices integrated into photonic chips. Notably, these Floquet topological resonances exhibit a high Q-factor, owing to their cavity-less nature, eliminating the need for physical boundaries. Our specific aim is to demonstrate an efficient, robust, and tunable quantum source within a topologically protected nanophotonic platform.
Remote entanglement distribution and stabilization between multiple qubits: The primary objective of this project is to realize efficient protocols for entanglement distribution and stabilization between multiple superconducting nodes (qubits) that are coupled to distant cavities. To achieve this, we utilize a Josephson-based three-wave mixing device that effectively mediates and controls the coupling between the cavities. This device generates a delocalized two-mode squeezed state, establishing entanglement between the remote cavities. By incorporating state-of-the-art, in situ quantum-limited amplifiers, we enable the distribution of remote entanglement among numerous superconducting qubits. This approach holds great promise for modular quantum computing, as it facilitates the construction of a quantum network capable of performing distributed quantum operations and information processing tasks.
Integrated Hybrid Quantum Circuits 