Professional Course

Quantum Detectors and Sensors

edX, Online
17 weeks
17 weeks
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Course description

Quantum Detectors and Sensors

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.

Who should attend?


Students should be familiar with the fundamentals of electromagnetic fields and possess a basic understanding of differential equations.

Training content

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

Course delivery details

This course is offered through Purdue University, a partner institute of EdX.

6-9 hours per week


  • Verified Track -$2250
  • Audit Track - Free

Certification / Credits

What you'll learn

  • Theory of quantum noise
  • Superconducting single photon detectors
  • Foundations of Quantum metrology
  • Operating principles of quantum vs. classical detectors
  • Quantum sensing devices including magnetometers and interferometers
  • Theory of quantum coherence

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02139 Cambridge Massachusetts


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