qt304/qs501p: experiments in quantum optics

Michelson Interferometer

To demonstrate the principles of optical interference and precision measurement using a classic Michelson interferometer setup. It allows users to explore fundamental concepts such as coherence, fringe formation, path length differences, and wave superposition, which are essential in both classical optics and foundational experiments in quantum mechanics.

Polarization and 3D Cinema Technology

To demonstrate how polarization of light is used to create 3D visual effects, as applied in 3D cinema. It provides hands-on experiments to explore linear and circular polarization, polarization filtering, and how each eye can receive different images using polarized light—laying the foundation for understanding both classical and quantum polarization optics.

Fourier Optics

To demonstrate the principles of Fourier optics using lenses and spatial filtering techniques. It helps students visualize how optical systems perform Fourier transforms of images, enabling exploration of concepts like spatial frequency, diffraction, image filtering, and optical information processing. The kit provides hands-on learning in both physical optics and signal analysis, making it ideal for optics and photonics education. 

Bomb Tester Demonstration

Demonstrate the concept of interaction-free measurement based on the Elitzur–Vaidman bomb tester thought experiment. It shows how quantum mechanics allows the detection of an object (like a "live bomb") without directly interacting with it, using interference and photon behavior in a interferometer setup. The experiment provides a hands-on way to explore counterfactual measurement and the non-classical nature of quantum observation. 

Quantum Eraser Demonstration

To experimentally demonstrate the quantum principle that interference disappears when which-path information is known, and reappears when that information is "erased." It provides hands-on insight into quantum complementarity, wave–particle duality, and the role of measurement in quantum mechanics.

Quantum Cryptography (Analogy) 

To illustrate the basic principles of quantum key distribution (QKD), such as the BB84 protocol, using an accessible, non-quantum optical analogy. It helps users understand how quantum mechanics enables secure communication, emphasizing concepts like no-cloning, basis choice, and eavesdropping detection.