• Technical Conference: 

    07 – 12 May 2023

  • Exhibition: 

    09 – 11 May 2023

SC479 - Introduction to Quantum Optics

Sunday, 15 May
13:30 - 17:30

Short Course Level: Beginner


Bahaa Saleh, CREOL, Univ. of Central Florida, USA

Short Course Description:

This course will begin with a brief overview of the basic quantum principles—superposition, indeterminacy, non-clonability, and entanglement—highlighting the essence of the “quantum advantage” that has led to the emerging quantum technology leap.  The “mixed analog-digital” nature of the quantum bit (qubit) and its role in quantum computing will be introduced, and the distinction between entanglement and ordinary correlation will be clarified.  This will be followed by the application of these general quantum principles to light: demonstrating the inherent uncertainty in the optical amplitude, phase, quadrature components, and photon number; noting bounds on the uncertainty product dictated by the Heisenberg principle and their manipulation by “squeezing”; and summarizing the photon statistics associated with various quantum states of light.  

The third segment of the course covers the optics (diffraction, interference, and polarization) of a single photon, highlighting its similarity to classical optics and explaining the notion of wave-particle “duality”.  This will lead to a detailed description of the optics of two entangled photons (biphotons), highlighting the similarity with the optics of classical partially coherent light, and introducing the idea of ghost imaging. The fourth segment is devoted to two-photon interference, which will be introduced using the single beam-splitter configuration of Hong-Ou-Mandel, and the Mach-Zehnder interferometers. The enhanced sensitivity of phase measurement afforded by quantum interferometry is the basis of the emerging field of quantum sensing and metrology. The course will end by a brief look at photonic implementation of quantum logic gates and quantum circuits

Short Course Benefits:

This course will enable you to:

  • Explain the principal quantum principles underlying the quantum technology leap. 
  • Explain the difference between entanglement and classical correlation resulting from shared information at birth.
  • Explain the meaning of squeezing of light and its advantage in precision measurement
  • Summarize the photon statistics and noise properties associated with various states of light
  • Compare single-photon optics to classical coherent optics
  • Compare two-photon optics to classical partially coherent optics
  • Determine the diffraction and interference properties of a single photon
  • Determine the diffraction and interference properties of a biphoton
  • Distinguish between classical and quantum ghost imaging
  • Identify the origin of the enhanced sensitivity in two photon interference
  • Discuss the advantages and disadvantages of photonic quantum logic gates
  • Read and understand the main point of new materials (papers, proposals, etc)  on optical quantum information technology
Short Course Audience:

This course is intended for audience with knowledge of basic optical/electrical engineering or physics and an interest in the emerging quantum technology and its applications in information processing, precision sensing and metrology, and secure communication.

Instructor Biography:

Bahaa Saleh is Distinguished Professor and former Dean of CREOL, University of Central Florida. He served as Chair of Electrical Engineering at Boston University and University of Wisconsin-Madison. His contributions to quantum optics and image science are published in more than 250 journal papers and 3 books (Photoelectron Statistics, Fundamentals of Photonics, and Subsurface Imaging). He is founding editor of Advances in Optics & Photonics, Fellow of IEEE, OSA, SPIE, and APS, and recipient of OSA’s Beller and Meese Awards.