Members: Yuli Lanir

Supervisor: Dr. Serge Rosenblum, Dr. Guy Koren

"Quantum computing holds immense promise for revolutionizing computation and scientific simulations by harnessing the principles of quantum mechanics. However, the fragile nature of quantum systems poses significant challenges, including decoherence and error propagation. Our research aims to address these challenges by improving a pre-existing quantum electrical circuit that simulates topological edge states while enhancing qubit lifetime through innovative filtering techniques. Our goal was to enhance the performance and robustness of the existing 6-qubit quantum circuit. To this end, the project had four stages: First, analyzing the existing quantum electrical circuit connecting 6 qubits via waveguide to simulate topological edge states. Second, evaluating the effectiveness of the circuit in producing the desired topological edge state under varying fabrication errors.Third, enhancing qubit lifetime by implementing a RF notch filter (Purcell filter) to mitigate the qubit's energy leakage to the environment during measurements. And finally, fabricating the Purcell filter and measuring its effectiveness. After performing these steps, we have successfully integrated an RF notch filter to reduce energy leakage during measurements and improve qubit coherence, and mesured the robustness of the system under varying fabrication error rates."