Save Big on Coursera Plus. 7,000+ courses at $160 off. Limited Time Only! Grab it Explore the fundamentals of Quantum Error Correction (QEC) in this introductory lecture. Delve into the challenges of the NISQ (Noisy Intermediate-Scale Quantum) era and understand the concept of decoherence. Compare and contrast noise in classical and quantum systems, with a focus on quantum bit-flip noise. Examine the classical 3-bit code as a precursor to quantum error correction techniques. Learn about coherence times in superconducting qubits and gain insights into the development of scalable quantum devices. Discover how quantum tricks can be employed to mitigate errors and improve the reliability of quantum computations.