Quantum Metrology: Superconducting Electronics & Qubits

This lecture covers the fundamentals of quantum metrology, focusing on superconducting electronics. It delves into the theory of superconductivity, Josephson junctions, SQUIDs, and various types of superconducting detectors. The discussion extends to the development of nanowire-based electronics, including nTrons, yTrons, and hTrons, and their applications in quantum computing. The lecture also explores the challenges and advancements in superconducting single-photon detectors, emphasizing their superior performance in quantum information applications. Additionally, it delves into the principles of qubits, including the Cooper Pair Box and transmons, highlighting their significance in quantum computing. The lecture concludes with insights into quantum supremacy and the fabrication and measurements of transmons.