Quantum Detectors and Sensors

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Free Online Course: Quantum Detectors and Sensors provided by edX is a comprehensive online course, which lasts for 17 weeks long, 6-9 hours a week. The course is taught in English and is free of charge. Upon completion of the course, you can receive an e-certificate from edX. Quantum Detectors and Sensors is taught by Zubin Jacob, Li-Ping Yang and Leif Bauer.

Overview
  • Classical detectors and sensors are ubiquitous around us from heat sensors in cars to light detectors in a camera cell phone. Leveraging advances in the theory of noise and measurement, an important paradigm of quantum metrology has emerged. Here, ultra-precision measurement devices collect maximal information from the world around us at the quantum limit. This enables a new frontier of perception that promises to impact machine learning, autonomous navigation, surveillance strategies, information processing, and communication systems.

    Students in this in-depth course will learn the fundamentals about state-of-the-art quantum detectors and sensors. They will also learn about quantum noise and how it limits quantum devices. The primary goal of the course is to empower students with a critical and deep understanding of emerging applications at the quantum-classical boundary. This will allow them to adopt quantum detectors and sensors for their own endeavors.

Syllabus
  • Module 1: Quantum Noise

    • Bosons vs. Fermions
    • Bosonic Harmonic Oscillator
    • Two-Level Atoms
    • Fluctuation-Dissipation Theorem
    • Vacuum Fluctuations

    Module 2: Quantum Detectors

    • Classical Detectors
    • Single Photon Avalanche Detectors
    • Superconducting Detectors
    • Quantum Interference
    • Quantum Non-Demolition Measurement

    Module 3: Quantum Sensing

    • Quantum Fisher Information
    • Coherent States and Squeezed States
    • Quantum Interferometry
    • Nitrogen Vacancy Centers in Diamond
    • Quantum Phase Transition Based Sensing Detection